MINEOLA - A key witness was back on the stand today, this time to be questioned by the defense in the trial of a former high-ranking Nassau police official who stands accused of conspiracy and official misconduct.

William Flanagan, once third-in-command of the entire Nassau County Police Department, is accused of trying to toss out criminal charges for the teenage son of a wealthy police donor in exchange for donations to the department and other gifts.

Today, the wealthy donor, Gary Parker, was cross-examined by Flanagan's defense attorney, Bruce Barket. Barket attempted to show the jury that Parker and Flanagan had a long friendship, and that Parker only asked him to help return the items his son, Zachary Parker, had stolen from his high school.

As News 12 Long Island has reported, Zachary Parker was sentenced to probation for stealing $11,000 worth of electronic equipment from JFK High School.

"William Flanagan had nothing at all to do with the decision to arrest or not arrest Zackary Parker," Barket insisted to News 12 outside the courtroom today.

If Flanagan is convicted, he could spend up to four years behind bars.