SHARECOMMENTMORE

WASHINGTON, D.C. (CNN) - A hearing was held Thursday to discuss the freedoms of presidential assailant John Hinckley Jr.

Hinckley was found not guilty by reason of insanity in the March 1981 shooting of President Ronald Reagan and three others. He has lived at St. Elizabeth's, a psychiatric hospital near Washington, for decades.

Tuesday's hearing focused on whether the Secret Service had made an incorrect report regarding one of Hinckley's periodic trips to Williamsburg, Virginia to see his mother.

The details were not described in court, but according to a source, Secret Service agents told federal prosecutors that Hinckley was involved in a "disruption" during a tour of an unnamed facility and that police were summoned. Prosecutors called the complaint a "fabrication."

A federal judge is considering whether the 57-year-old will be allowed longer visits to his mother's Virginia home and whether the psychiatric hospital overseeing his treatment can release him one day as an outpatient.

Hinckley is currently allowed to spend ten days a month visiting his mother.