Peterson could have killed me - Khan
Amir Khan says Lamont Peterson "could have killed me" during their fight in Washington DC last year and insists he is a "criminal".
Peterson is currently trying to clear his name after taking the Bolton fighter's WBA and IBF light-welterweight crowns and will attend a hearing in June after testing positive for a banned substance.
The American claims he was taking synthetic testosterone on medical grounds but Kahn says he was "on something".
The 25-year-old added: "I still believe I won the fight but he could have killed me, with the amount of pressure and the better shots he threw in that fight because he was on something.
"So it's definitely a criminal offence, I think. That's why I think he should get a ban. He should be banned and made an example of in boxing."
A re-match with Peterson has been called off and Kahn will return to the ring to fight Danny Garcia for the WBC Championship on July 14.