TribLIVE's Daily and Weekly email newsletters deliver the news you want and information you need, right to your inbox. The union that represents the Pittsburgh police is appealing the firing of an officer who has been in trouble dozens of times on technical grounds. Fraternal Order of Police Fort Pitt Lodge No. 1 filed a petition to vacate last month’s arbitration award, which found in favor of the City of Pittsburgh’s termination of former officer Paul Abel. Abel was fired in December. He has been the subject of several investigations by the Citizen Police Review Board and has been sued multiple times, including in a case involving a man’s death in December 2002.