This sort of thing actually happened https://en.wikipedia.org/wiki/John_Schneeberger https://en.wikipedia.org/wiki/John_Schneeberger >John Schneeberger (born

This sort of thing actually happened https://en.wikipedia.org/wiki/John_Schneeberger https://en.wikipedia.org/wiki/John_Schneeberger >John Schneeberger (born 1961) is a North Rhodesian-born former physician who drugged and raped one of his female patients and also his stepdaughter while a physician in Canada. For years, he evaded arrest by implanting a fake blood sample inside a plastic tube in his arm, which confounded DNA test results. >During his 1999 trial, Schneeberger revealed the method he used to foil the DNA tests. He implanted a 15 cm Penrose drain filled with another man's blood and anticoagulants in his arm.[5] During tests, he tricked the laboratory technician into taking the blood sample from the place the tube was planted.