SPRINGFIELD -- George Perrot, imprisoned for 30 years for raping a 78-year-old woman in 1985, has filed a federal lawsuit against the city, more than a dozen current and former police officers, an assistant district attorney and the FBI.

He argues he was framed.

Perrot -- 17 at the time of his arrest -- was freed from prison in 2016 after a judge granted him the right to a new trial. He was convicted of Mary Prekop's rape in 1992.

He was released on bail until the charges against him were dismissed in 2017.

He filed suit in U.S. District Court on Thursday.

A statement by his Chicago attorneys said his conviction was based solely on "false evidence manufactured by the defendants."

Lawyers for Perrot have argue he was convicted, in part, over a flawed hair analysis conducted by the FBI.

This story will be updated after further reporting.