An officer on trial for refusing to arrest a homeless man took the stand Thursday, saying he was punished for trying to help needy people instead of locking them up. Officer Eduardo Delacruz could be kicked off the police force if an administrative judge finds him guilty of failing to obey a lawful order. He refused to arrest a homeless man who had been sleeping in a Manhattan parking garage in 2002. "I'm not going to do it," Delacruz recalled telling a sergeant who had handcuffed the man and told the officer to make the arrest. "I'm not going to lock up a homeless man." [more] Pictured above: Officer Eduardo Delacruz