Doctor Clemens is a former inmate at the Fiorina 161 Prison, where he served a seven year sentence for prescribing lethal doses of painkiller to eleven people while drunk and addicted to morphine. He knew he wouldn't be allowed to practice medicine again anywhere else, so he stayed at the prison as Chief Medical Officer. At Ripley's request, he performs an autopsy on Newt, thinking he is looking for a possible viral contagion when Ripley really wants to know if Newt was incubating an alien.