Joseph E. Birkett (born February 13, 1955) is the DuPage County State's Attorney and former Republican nominee for Illinois Lieutenant Governor with running-mate Judy Baar Topinka. Birkett has been State's Attorney since October 1, 1996 when he was appointed to fill the vacancy left by Anthony Peccarelli. He has been appointed to serve on the Illinois Appellate Court effective in December 2010.
Birkett is one of 10 children on Chicago’s West side. His father died when he was 13. He attended St. Phillip High School, and Aurora Central Catholic High School where he was football team captain and Most Valuable Player. He went on to attend North Central College, where he earned a B.A. in Political Science and English in 1977. He received his Juris Doctor from John Marshall Law School in 1981, where he placed first in the Intramural Moot Court Competition.
He was the Assistant State's Attorney of Dupage County from 1981 to 1985, Chief of Major Crimes Unit from 1988 to 1986, Deputy Chief of Criminal Division from 1986 to 1991, Chief of Criminal Division from 1991 to 1996, and has served as DuPage County State's Attorney since then. He was first elected in November 1996, then re-elected in 2000 and 2004.
Birkett gained national attention when he prosecuted Marilyn Lemak in 1999 for the murders of her three children. Lemak is currently serving a life sentence.
He has been married to Patricia Hill since July 9, 1977, and has two children, Nick and Jackie. He is a resident of Wheaton and attends St. Daniel The Prophet Catholic Church in Wheaton. His brother-in-law is George Wendt, who is married to Birkett’s sister Bernadette.
 2002 run for Attorney General
 2006 run for Lieutenant Governor
Judy Baar Topinka named Birkett as her running mate on 9 December 2005. On March 21, 2006, he defeated Steve Rauschenberger, Sandy Wegman, and Lawrence Bruckner in the Republican Party’s primary. Topinka also won her primary race. In the November 7, 2006 General Election, Democrats Rod Blagojevich and Pat Quinn defeated Topinka and Birkett, as well as the Green Party’s Rich Whitney and Julie Samuels.
 Appellate Court Judge
On November 2, 2010 the Illinois Supreme Court appointed Joe Birkett to serve as Appellate Court Judge on the Second District Appellate Court, replacing Justice Jack O'Malley who is stepping down. He will be sworn in on December 13, 2010.
 Rolando Cruz case
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In 2002 Birkett's role in the wrongful prosecution of Rolando Cruz, subsequently exonerated by DNA evidence in the murder of 10-year-old Jeanine Nicarico, was partly responsible for his loss to Democrat Lisa Madigan in the race for Illinois attorney general.
 2007–08 Prosecution of Iraq War protesters
It is hard to believe that the criminal charges against Sarah M. Hartfield, 45, of Naperville and Jeff Zurawski, 39, of Downers Grove are not at least to some extent politically inspired in nature...We also suspect that had the banner read "Support Bush and Cheney" instead of "Impeach Bush and Cheney - LIARS" the situation would have been viewed a little differently.
Supporters of the defendants staged three rallies at the DuPage County courthouse. The charges were dropped when the chief witness failed to appear in court. Jeff Zurawski called the prosecution "vindictive" and requested a public apology.
- Chicago Tribune http://www.chicagotribune.com/news/chi-ap-il-birkett-appellate,0,855655.story
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- Shaw, Andy (December 15, 2005). "Topinka taps DuPage County state's attorney as running mate". abc7chicago.com. Retrieved February 23, 2009.
- Charges too severe against those who hung banner July 18, 2007 The Naperville Sun
- 2 face new charges in political-banner case By Art Barnum July 17, 2007
- "New charges in war protest arrests" - Chicago Daily Herald, IL Jul 17, 2007
- "DuPage judge drops charges in war protest" Chicago Tribune - Chicago, Ill. by Art Barnum Aug 21, 2008 Page 5 Metro 
http://blogs.chicagotribune.com/news_columnists_ezorn/2009/08/joe-birkett-and-the-nicarico-case.html http://www.tilljusticeisdone.com/ http://articles.chicagotribune.com/2009-06-12/news/0906110711_1_jeanine-nicarico-murder-trial-brian-dugan http://articles.chicagotribune.com/2002-12-02/news/0212020161_1_brian-dugan-jeanine-nicarico-rolando-cruz http://www.archpundit.com/wurfwhile/?p=55 http://articles.chicagobreakingnews.com/2009-07-28/news/28503108_1_brian-dugan-birkett-said-dugan-dugan http://www.seizeliberty.com/joebirkett/ http://www.seizeliberty.com/dumpjimryan/10reasons.htm