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Sex offender

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This article is about the criminal term. For the novel, see The Sex Offender: A Novel. For the Polkadot Cadaver album, see Sex Offender (album).

A sex offender (sexual offender, sex abuser, or sexual abuser) is a person who has committed a sex crime. What constitutes a sex crime differs by culture and legal jurisdiction. Most jurisdictions compile their laws into sections, such as traffic, assault, and sexual. The majority of convicted sex offenders have convictions for crimes of a sexual nature; however, some sex offenders have simply violated a law contained in a sexual category. Some of the crimes which usually result in a mandatory sex-offender classification are: a second prostitution conviction, sending or receiving obscene content in the form of SMS text messages (sexting), and relationship between young adults and teenagers resulting in corruption of a minor (if the age between them is greater than 1,060 days). If any sexual contact was made by the adult to the minor, then child molestation has occurred. Other serious offenses are sexual assault, statutory rape, bestiality, child sexual abuse, female genital mutilation, incest, rape, and sexual imposition. However, particularly sex offender registration laws in the United States, may also classify less serious offenses as sexual offenses requiring sex offender registration. In some states public urination, having sex on a beach,[1] or unlawful imprisonment of a minor also constitute sexual offenses requiring registration.[2][3]


In looking at various types of offenses, an example of a digital obscenity offense is child pornography. In the modern world of technology, many jurisdictions are reforming their laws to prevent the over-prosecution of sex offenders and focusing on crimes involving a victim. The term sexual predator is often used to describe a sex offender or any of the "tier offenders"; however, only the category just below sexually-violent sexual predator is reserved for a severe or repeated sex offender: sexual predator.

In the United States, the Adam Walsh Act (AWA) proposed to provide funding to each jurisdiction which would agree to incorporate its Act into their law. In the few jurisdictions accepting the agreement, there are Tier I, Tier II, or Tier III sex offenders. Individuals convicted of petty crimes not covered by the AWA are still liable to abide by the previous regulations denoting them as a sex offender (or habitual sex offender, sexual predator, sexually violent sexual predator, or child-victim offender).

In the United States, the United Kingdom, and other countries, a convicted sex offender is often required to register with the respective jurisdiction's sex offender registry. In the U.S., registry databases are often open to the public. Sexual offenders are sometimes classified by level.[4] The highest-level offenders generally must register for their entire lives; low-level offenders may only need to register for a period of time.


The level of recidivism in sexual offenders is lower than is commonly believed.[5][6] A 2002 study by the Office of Justice Programs (OJP) of the United States Department of Justice following 9,691 male sex offenders released from prisons in 15 US states in 1994 indicated that within the first 3 years following their release, rearrest and reconviction rates for new sex offenses were 5.3 and 3.5 percent, respectively; that is, about 1 in 19 of released sex offenders were arrested within three years for another sex crime. The same study found that during the same 3 years from release, 68 percent of released non-sex offenders were re-arrested for any crime (and 47.8 percent reconvicted), while 43 percent of the released sex offenders were rearrested for any crime (and 24 percent reconvicted).[7]

According to the Office of Justice Programs (OJP) of the United States Department of Justice,[8] in New York State, the recidivism rate for sex offenders has been shown to be lower than any other crime except murder. Another report from the OJP which studied the recidivism of prisoners released in 1994 in 15 states (accounting for two-thirds of all prisoners released in the United States that year) reached the same conclusion.[9]

Of released sex offenders who allegedly committed another sex crime, 40 percent perpetrated the new offense within a year or less from their prison discharge. Within three years of release, 2.5 percent of released rapists were rearrested for another rape, and 1.2 percent of those who had served time for homicide were arrested for a new homicide. Sex offenders were about four times more likely than non-sex offenders to be arrested for another sex crime after their discharge from prison (5.3 percent of sex offenders, versus 1.3 percent of non-sex offenders). An estimated 24 percent of those serving time for rape and 19 percent of those serving time for sexual assault had been on probation (or parole) at the time of the offense for which they were in state prison in 1991.[7]

Approximately 4,300 child molesters were released from prisons in 15 U.S. states in 1994. An estimated 3.3 percent of these 4,300 were rearrested for another sex crime against a child within 3 years of release from prison. Among child molesters released from prison in 1994, 60 percent had been in prison for molesting a child 13 years old or younger. The median age of victims of those imprisoned for sexual assault was less than 13 years old; the median age of rape victims was about 22 years. Child molesters were, on average, five years older than violent offenders who committed their crimes against adults. Nearly 25 percent of child molesters were age 40 or older, but about 10 percent of inmates with adult victims were in that age group.[7]

Post-incarceration registries and restrictions

A sex offender registry is a system in place in a number of jurisdictions designed to allow authorities to keep track of the residence and activity of sex offenders (including those released from prison). In some jurisdictions (especially in the United States), information in the registry is made available to the public via a website or other means. In many jurisdictions, registered sex offenders are subject to additional restrictions (including housing). Those on parole (or probation) may be subject to restrictions not applicable to other parolees or probationers.[10] These include restrictions on being in the presence of minors, living in proximity to a school or daycare center, or owning toys (or other items of interest to minors).

Megan's Law, in the U.S., is designed to sanction sex offenders and reduce their recidivism rate. The law is enacted and enforced on a state-by-state basis. Most states also restrict where convicted sex offenders can live after their release, prohibiting residency within a designated distance of schools and daycare centers (usually 1,000–2,000 feet (300–610 m)). Guided by the 2007 Adam Walsh Child Protection and Safety Act, sex offenders must avoid of such areas as schools, bus stops, gyms, recreation centers, playgrounds, parks, swimming pools, libraries, nursing homes, and places of worship by 500 to 2,500 feet (150 to 760 m). However, residence stipulations vary from state to state. Some states (such as Arkansas, Illinois, Washington and Idaho) do not require sex offenders to move from their residences if a forbidden facility is built or a law is enacted after the offender takes up residency. Many aspects of the laws are criticised by reformists and civil right groups like National RSOL[11] and Human Right Watch,[12][13] and treatment professionals as Atsa.[14][15]

Committing to a residence requires a convicted sex offender to be notified of registration regulations by local law enforcement if convicted after January 1, 2005. The offender must act upon the notification within five business days of receipt. If and when an offender is released from incarceration, they must confirm their registration status within five business days. Registration data includes the offender’s sex, height, weight, date of birth, identifying characteristics (if any), statutes violated, fingerprints and a current photograph. An offender’s email addresses, chat room IDs and instant-messaging aliases must be surrendered to authorities. In Colorado, an offender must re-register when moving to a new address, changing their legal name, employment, volunteer activity, identifying information used online or enrollment status at a post-secondary educational institution. A web-based registration list may be found on county websites, which identifies adult convicted sex offenders who are sexually-violent predators convicted of felony sexual acts, crimes of violence or failure to register as required. Legally, “any person who is a sexually violent predator and any person who is convicted as an adult...has a duty to register for the remainder of his or her natural life”.[16] Exceptions to this include deferred sentencing for the offense or petition of the court for termination of registration.[17]

Some sex offenders are deemed too dangerous to society to be released, and are subjected to civil confinement — indefinite continuing incarceration, which is supposed to, but does not always, provide treatment to the offender.

Therapies and treatment

Behavior modification programs have been shown to reduce recidivism in sex offenders.[18] Often, such programs use principles of applied behavior analysis. Two such approaches from this line of research have promise. The first uses operant conditioning approaches (which use reward and punishment to train new behavior, such as problem-solving)[19] and the second uses respondent conditioning procedures, such as aversion therapy. Many of the behaviorism programs use covert sensitization[20] and/or odor aversion: both are forms of aversion therapy, which have had ethical challenges. Such programs are effective in lowering recidivism by 15–18 percent.[21] The use of aversion therapy remains controversial, and is an ethical issue related to the professional practice of behavior analysis.

In 2007, the Texas State Auditor released a report showing that sex offenders who completed the Texas Sex Offender Treatment Program (SOTP) were 61 percent less likely to commit a new crime.[22]

Chemical castration is used in some countries and states to treat male sex offenders. Unlike physical castration, it is reversible by stopping the medication. For male sex offenders with severe or extreme paraphilias, physical castration appears to be effective. It results in a 20-year re-offense rate of less than 2.3 percent (versus 80 percent in the untreated control group), according to a large 1963 study involving a total of 1036 sex offenders by the German researcher A. Langelüddeke.[23] This was much lower than otherwise expected, compared with overall sex offender recidivism rates. Although considered cruel and unusual punishment by many, physical castration does not otherwise affect the lifespan of men (compared with uncastrated men).[citation needed]

Risk assessment

Therapists use various methods to assess individual sex offenders' recidivism risk. Risk assessment tools consider factors that have been empirically linked by research to sexual recidivism risk. Researchers and practitioners consider some factors as "static", such as age, number of prior sex offenses, victim gender, relationship to the victim, and indicators of psychopathy and deviant sexual arousal, and some other factors as "dynamic", such as an offender's compliance with supervision and treatment. [24] By examining both types of factors, a more complete picture of the offender's risk can emerge, compared with static or dynamic factors used alone.[25] Assessment tools include are listed in Wikipedia's List of tools used in sex offender forensic psychological evaluations.


It is argued that in U.S. sex offenders have been selected as the new realization of moral panics about sex, stranger danger, and national paranoia, the new folk devils or boogeymen. People convicted of any sex crime are "transformed into a concept of evil, which is then personified as a group of faceless, terrifying, and predatory devils", who are, contrary to scientific evidence, perceived as a constant threat, habitually waiting for an opportunity to attack.[26] Consequently, sex offenders are brought up by media on Halloween, despite the fact that there has never been a recorded case of abduction or abuse by a registered sex offender on Halloween.[26]

Academics, treatment professionals,[14][27] and law reform groups such as Reform Sex Offender Laws, Inc.[28] and Women Against Registry[29] criticize current sex offender laws as based on media-driven moral panic and "public emotion", rather than a real attempt to protect society.[26][30][31][32][33][34] This can motivate legislators to pass knee-jerk laws[35] to address public hysteria, echoing a "populist punitiveness" perspective.[36] Many lawmakers feel that they will attract votes by appearing to be "tough on sex offenders."[37] One discrepancy pointed out by critics is that John Walsh, father of Adam Walsh and supporter of the Adam Walsh Act, has admitted having a relationship with a 16-year-old girl while being in his early 20s and aware of age of consent being 17 in New York,[38] meaning that, had he been convicted, John Walsh himself could be required to register as a sex offender. Since passage of the Adam Walsh Act, Walsh himself has criticized the law, stating "You can't paint sex offenders with a broad brush."[39]

Critics point out that contrary to media depictions, abductions by predatory offenders are very rare[40] and 93% of child sexual abuse is committed by someone the child knows: a family member, a family friend, someone in a position of authority.[41] According to the U.S. Department of Justice, sex offender recidivism is 5.3%,[42] the lowest for any type of crime except homicide.[43]

Critics say that, while originally aimed at the worst offenders, as a result of moral panic the laws have gone through series of amendments, many named after the victim of a highly publicized predatory offense, expanding the scope of the laws to low-level offenders, and treating them the same as predatory offenders, leading to the disproportionate punishment of being placed on a public sex offender registry, with the consequent restrictions on movement, employment, and housing.[29][40] As a result of the media narrative of sex offenders, highlighting egregious offenses as typical behavior of sex offenders, and distorting the facts of cases,[44] the panic has been said to increased, leading legislators to attack judicial discretion,[44] by making registration mandatory based strictly on offense of conviction, without considering the likelihood to re-offend or the actual severity of the crime, thus punishing less serious offenders under the harsh sex offender laws.

See also



Monitoring, assessment, other


  • Jeffrey Dahmer: American serial killer with 17 known victims. Many of his killings included sexual assaults.
  • Richard Allen Davis: Convicted of kidnapping, committing a lewd act on, and murdering Polly Klaas (see "Victims" section).
  • Josef Fritzl: An Austrian man who began sexually abusing his daughter Elisabeth in 1977 and kept her imprisoned in his home from 1984 until 2008. He repeatedly sexually abused and raped Elisabeth, resulting in the births of seven children and one miscarriage. One of the children died in infancy, and three were imprisoned along with Elisabeth until 2008.
  • Jesse Timmendequas: A registered sex offender who lured Megan Kanka (see "Victims" section) to his house and then raped and murdered her.
  • Peter Tobin: British criminal with a long record, including convictions for two rapes, who was convicted of the rape and murder of a female Polish student in 2007. After this conviction, he was found guilty of the murders of two teenage girls who disappeared in 1991, and has reportedly claimed to have killed more than 40 other people.
  • Ottis Toole: Serial killer who confessed to multiple murders and rapes; believed to be the killer of Adam Walsh (see "Victims" section).
  • Don Vito: American reality television personality convicted of groping two 12-year-old girls in 2007.
  • Ariel Castro: Suspect in the Kidnappings of Amanda Berry, Gina DeJesus, and Michelle Knight.
  • Chris Ortloff: Former New York Assemblyman and New York Parole Board member, sentenced August 9, 2010 to twelve years and six months in prison plus lifetime supervision and a US$50,000 fine, after pleading guilty to a federal felony charge of online enticement of minors.[45]


  • Megan Kanka: raped and murdered by her neighbor, Jesse Timmendequas, in New Jersey in 1994. The murder attracted national attention and subsequently led to the introduction of "Megan's Law", which requires law enforcement to compile and make available to the public information on convicted sex offenders.
  • Polly Klaas: Kidnapped at age 12 from her California home in 1993. Richard Allen Davis, who had a criminal record dating to the late 1960s that included some sex crimes, was convicted of her murder.
  • Jessica Lunsford: Kidnapped at age 9 from her Florida home in 2005 and murdered by John Couey, a previously convicted sex offender. The Jessica's Laws passed in many U.S. states were inspired by her case.
  • Dru Sjodin: University of North Dakota student kidnapped in 2003 and found dead five months later. A registered sex offender was convicted of her murder.
  • Adam Walsh: On July 27, 1981, Adam Walsh’s abduction not only turned the lives of his parents upside down, but also every other home with small children across the country. At this point in time, it was deemed safe and acceptable to leave children in the car or toy section of a store unattended. Adam Walsh, only six-years-old, stayed playing video games with three other boys in the toy section of Sears while his mother shopped for lamps only a few feet away. When the four boys acted up, they were told to leave because the other boys informed security that their parents were not in the store. Returning to the video games, Adam’s mother searched frantically for her son who was nowhere to be found. Hours passed by before the police were called and Adam’s mother taken seriously by Authorities. Between the news casts, fliers, and alerts that were disbursed in Hollywood, Florida, and ultimately nationwide, Adam’s family and the parents of America grew weary of his chances of being alive. Two weeks later, a fisherman reported a severed head in an irrigation canal nearly one hundred miles away from the Sears department store that Authorities deciphered to be Adam Walsh by dental record and the verification of a family friend. Two years later, detained convicted felon and offender Otis Toole confessed to the kidnapping and murder of a young boy he picked up in a Hollywood, Florida Sears parking lot. Initially, Toole’s story was flawed with blame on a partner, followed by a confession of his solo action in the crime, and a description of events identical to Mrs. Walsh’s testimony. Yet, even after walking the police through each step and scenario that had taken place that summer day of 1981, Toole retracted his confession of ever committing the heinous crime. With this, Adam’s parents made it their mission to be activists for missing children, and never surrendered their son’s right to justice and their own peace of mind to finally receive closure to the case. Passing away in prison where he had resided for hundreds of other accounted for murders he had committed, Toole was finally to blame and announced as such by Authorities twenty-seven years later ( This tragedy depicts the importance of public awareness of those specifically intending on harming children, however that may be. This repeat offender provided numerous instances and examples of which he should have been permanently incarcerated for, but he was not even under supervision or probation of any kind to manage his activities in the outside world, interaction with children, or chances of murdering again.
  • Jacob Wetterling: Kidnapped at age 11 from his Minnesota hometown in 1989 and has not been seen since.
  • Jaycee Lee Dugard: Kidnapped for 18 years.


  • John Walsh: Father of Adam Walsh and host of America's Most Wanted.
  • Patty Wetterling: Mother of Jacob Wetterling. Notable for opposing very broad registration laws that classify minor offenders on the same scale as high-risk predators.

Shows and organizations


  1. ^ Unsigned, "Couple found guilty of having sex on Florida beach," Miami Herald, May 4, 2015,, retrieved September 10, 2015.
  2. ^ Sex offender ordinance catches family in legal Trouble,
  3. ^ "Court keeps man on sex offender list but says 'troubling'". Toledo News Now. 28 March 2015. 
  4. ^ US Office of Justice Programs Archived from the original 2012-05-05.
  5. ^ Levenson, Jill S.; Brannon, Yolanda N.; Fortney, Timothy; Baker, Juanita (12 April 2007). "Public Perceptions About Sex Offenders and Community Protection Policies" (PDF). Analyses of Social Issues and Public Policy 7 (1): 6. doi:10.1111/j.1530-2415.2007.00119.x. 
  6. ^ Harris, Andrew J. R; Hanson, Karl (2004). "Sex Offender Recidivism" (PDF). Public Safety and Emergency Preparedness Canada. 
  7. ^ a b c "Recidivism of Sex Offenders Released from Prison in 1994" (PDF). U.S. Department of Justice - Office of Justice Programs. Archived from the original (PDF) on 4 September 2015. 
  8. ^ U.S. Department of Justice Criminal Offenders Statistics: Recidivism, statistical information from the late 1990s and very early 2000s, retrieved May 4, 2007
  9. ^ "Recidivism of Prisoners Released in 1994" (PDF). U.S. Department of Justice - Office of Justice Programs. Archived from the original (PDF) on 4 September 2015. 
  10. ^ Sex Offender Registry Review 2007
  11. ^ Lovett, Ian (October 1, 2013). "Restricted Group Speaks Up, Saying Sex Crime Measures Go Too Far". The New York Times. Retrieved 14 November 2014. 
  12. ^ "No Easy Answers: Sex Offender Laws in the US". Human Rights Watch. 11 September 2007. Retrieved 2011-02-21. 
  13. ^ Raised on the Registry: The Irreparable Harm of Placing Children on Sex Offender Registries in the US Human Rights Watch 2013 ISBN 978-1-62313-0084
  14. ^ a b "The Registration and Community Notification of Adult Sexual Offenders". Association for the Treatment of Sexual Abusers. April 5, 2010. Retrieved 14 November 2014. 
  15. ^ "Sexual Offender Residence Restrictions". Association for the Treatment of Sexual Abusers. April 5, 2010. Retrieved 14 November 2014. 
  16. ^ Committee of Legal Services, State of Colorado General Assembly.
  17. ^ Colorado Bureau of Investigation, Colorado Division of Criminal Justice, Colorado Sex Offender Management Board.
  18. ^ Marshall, W.L., Jones, R., Ward, T., Johnston, P. & Bambaree, H.E.(1991). Treatment of sex offenders. Clinical Psychology Review, 11, 465-485
  19. ^ Maguth Nezu, C., Fiore, A.A. & Nezu, A.M (2006). Problem Solving Treatment for Intellectually Disabled Sex Offenders. International Journal of Behavioral Consultation and Therapy, 2(2), 266-275 BAO
  20. ^ Rea, J. (2003). Covert Sensitization. The Behavior Analyst Today, 4 (2), 192-201 BAO
  21. ^ Marshall, W.L., Jones, R., Ward, T., Johnston, P. & Bambaree, H.E.(1991). Treatment of sex offenders. Clinical Psychology Review, 11, 465-485
  22. ^ “An Audit Report on Selected Rehabilitation Programs at the Department of Criminal Justice.” Texas State Auditor. March 2007. Report No. 07-026. Retrieved Oct 20, 2009.
  24. ^ Harris, A. J.; Lobanov-Rostovsky, C.; Levenson, J. S. (2 April 2010). "Widening the Net: The Effects of Transitioning to the Adam Walsh Act's Federally Mandated Sex Offender Classification System" (PDF). Criminal Justice and Behavior 37 (5): 503–519. doi:10.1177/0093854810363889. 
  25. ^
  26. ^ a b c Extein, Andrew (25 October 2013). "Fear the Bogeyman: Sex Offender Panic on Halloween". Huffington Post. Retrieved 26 November 2014. 
  27. ^ Rogers, Laura (July 30, 2007). "Comments on Proposed Guidelines to Interpret and Implement the Sex Offender Registration and Notification Act (SORNA)" (PDF). Association for the Treatment of Sexual Abusers. 
  28. ^ "Our History". Reform Sex Offender Laws, Inc. Retrieved 25 November 2014. 
  29. ^ a b Levin, Sam (5 September 2013). "Missouri Sex Offenders: "Women Against Registry" Says Labels Unfairly Destroy Lives". Riverfront Times. Retrieved 26 November 2014. 
  30. ^ Maguire, Mary; Singer, Jennie Kaufman (4 December 2010). "A False Sense of Security: Moral Panic Driven Sex Offender Legislation". Critical Criminology 19 (4): 301–312. doi:10.1007/s10612-010-9127-3. 
  31. ^ Walker, Bela (19 January 2011). "Essay: Deciphering Risk: Sex Offender Statutes and Moral Panic in a Risk Society". The University of Baltimore Law Review 40 (2). 
  32. ^ Spohn, Ryan (31 July 2013). "Nebraska Sex Offender Registry Study Final Report" (PDF). University of Nebraska - Omaha. p. 51. Retrieved 21 November 2014. 
  33. ^ Fox, Kathryn J. (28 February 2012). "Incurable Sex Offenders, Lousy Judges & The Media: Moral Panic Sustenance in the Age of New Media". American Journal of Criminal Justice 38 (1): 160–181. doi:10.1007/s12103-012-9154-6. 
  34. ^ Lancaster, Roger (20 February 2013). "Panic Leads to Bad Policy on Sex Offenders". The New York Times. 
  35. ^ Wright, Richard G. (2014). Sex offender laws: failed policies, new directions (Second edition. ed.). Springer Publishing Company. p. 64. ISBN 0826196713. 
  36. ^ Mcalinden, Anne-Marie (1 May 2006). "Managing risk: From regulation to the reintegration of sexual offenders". Criminology and Criminal Justice 6 (2): 201. doi:10.1177/1748895806062981. 
  37. ^ Mansnerus, Laura (29 May 2005). "ON POLITICS; Stoking 'Moral Panic' Over Sex Offenders". The New York Times. 
  38. ^ Walsh, John; Walsh, Susan (2008). Tears of rage : from grieving father to crusader for justice: the untold story of the Adam Walsh case. New York: Pocket Books. p. 9. ISBN 1439136343. I never gave much thought to how old Reve was. She was pretty, and she dressed sharp. And there was also that body. We were starting to kind of hang around together. She took me horseback riding, and we went skiing. She was always into her own thing, and I like that. Then one night Tom Roche was sitting around in my place and picked up a copy of that day’s Buffalo Evening News. It was a picture of Reve, who had just won an art contest. ‘Holy Jesus, Mary, and Joseph,’ Tom said. ‘There is a picture of Reve in the paper, John, and she's 16 years old.’ But you know, she had this way about her. She had a certain presence. And after awhile I just got over how young she was. She was way more sophisticated than anybody in her high school and she always dated older guys. She had a fake ID. That's how she got into Brunner’s. She was born with high school. She was into art and her horses. And even then, she always seemed very… I don't know, serene. We weren't madly in love with each other. Though we had a good time together, and I relaxed a little after she turned 17." 
  39. ^ Koch, Wendy (26 February 2007). "Sex-offender residency laws get second look". USA Today. 
  40. ^ a b Lancaster, Roger (20 February 2013). "Panic Leads to Bad Policy on Sex Offenders". The New York Times. Retrieved 26 November 2014. 
  41. ^ U.S. Department of Justice, "Common Questions,", citing (reference updated), retrieved September 10, 2015.
  42. ^ Langan, Patrick; Schmitt, Erica; Durose, Matthew (November 2003). "Recidivism of Sex Offenders Released from Prison in 1994" (PDF). U.S. Department of Justice. Retrieved 26 November 2014. 
  43. ^ Langan, Patrick; Schmitt, Erica; Durose, Matthew (November 2003). "Recidivism of Prisoners Released in 1994" (PDF). U.S. Department of Justice. Retrieved 26 November 2014. 
  44. ^ a b Fox, Kathryn J. (28 February 2012). "Incurable Sex Offenders, Lousy Judges & The Media: Moral Panic Sustenance in the Age of New Media". American Journal of Criminal Justice 38 (1): 160–181. doi:10.1007/s12103-012-9154-6. ISSN 1936-1351. 
  45. ^ [> "Former New York State Parole Board Member and State Assemblyman Sentenced for Online Enticement of Minors"] Check |url= scheme (help). FBI Official Website. US Federal Bureau of Investigation. Retrieved 31 August 2015. 

External links