American podiatric surgeon who performed over 17 alleged alien-implant removal surgeries between 1995 and his death in 2014. Leir sent extracted objects for laboratory analysis and published findings in 'The Aliens and the Scalpel' (1999). Subject of Jeremy Corbell's 2017 documentary 'Patient Seventeen.'
Dr. Roger Krevin Leir was a California-licensed podiatric surgeon who became one of the most prominent figures in the physical investigation of alleged alien contact. After examining a patient's X-rays at a 1995 MUFON conference, he began performing surgeries to extract small metallic and biological objects from individuals who believed they had been abducted. Over nearly two decades he documented 17 such procedures, sending samples to labs including at New Mexico Institute of Mining and Technology and the University of California, San Diego. His work is detailed in his 1999 book and was the direct subject of Jeremy Corbell's 2017 documentary 'Patient Seventeen,' which followed his final surgery. Leir died of a cardiac arrest in March 2014, shortly after the surgery filmed in that documentary.