Roger K. Leir, D.P.M., (1934 – March 14, 2014) was a podiatric surgeon and ufologist best known as an investigator of alien implants. Leir appeared frequently on television and talk radio programs devoted to ufology.
Leir said he had removed about a dozen implants from people's bodies and claimed they were devices that "emit radio signals." Leir alleged that implants had moved by themselves during surgery as if to avoid removal. Leir said that laboratory testing of the implants implied they were of extraterrestrial origin.
Skeptical investigator Joe Nickell said that the alleged implants appeared to be ordinary objects such as shards of glass or fragments of metal that become lodged in arms, hands, legs and feet due to accidental falls or barefoot walking. Nickell said that Leir's associate, Derrel Sims, refused to cooperate when asked to provide a forensic medical institute with specimens or photos for analysis.
- Leir, Roger (2005). The aliens and the scalpel : scientific proof of extraterrestrial implants in humans. San Diego, CA: Book Tree. ISBN 978-1-58509-106-5.
- Leir, Roger (2005). UFO crash in Brazil : a genuine UFO crash with surviving ETs : a thorough investigation. San Diego, CA: Book Tree. ISBN 978-1-58509-105-8.
- "Roger Leir". imdb.com. Retrieved 29 March 2013.
- "Dr. Roger Leir". Coast to Coast AM. Retrieved August 17, 2012.
- Joe Nickell (24 October 2001). Real-Life X-Files: Investigating the Paranormal. University Press of Kentucky. pp. 124–. ISBN 978-0-8131-3727-8. Retrieved 29 March 2013.
- R. Stephen White (1 June 1998). Why science?. Nova Science. ISBN 978-1-56072-748-4. Retrieved 30 March 2013.
- Emmis Communications (May 1998). Orange Coast Magazine. Emmis Communications. pp. 14–. ISSN 02790483. Retrieved 30 March 2013.
- "R.I.P. Dr. Roger Leir". Coast to Coast AM. 2014-03-16. Retrieved 2014-03-16.
- "Dr. Roger Leir Has Died!". 2014-03-15. Retrieved 2014-03-16.
- "Dr. Roger Leir Dies". Unknown Country. 2014-03-16. Retrieved 2014-03-17.
- www.alienscalpel.com — Biographic information on Dr. Roger Leir
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