Effective December 1, 2013, if you are convicted of a state or federal felony that is directly related to your service as a firefighter or rescue squad worker, and you are not yet 55 or have not yet received 20 years of fully creditable service; or you are at least 55 and have 20 years of creditable service but you are still serving as a participant of an eligible department or squad, you are prohibited from receiving any retirement benefit other than a return of your contributions.