A former Paterson police officer who was indicted last month on charges he beating a man in handcuffs and then lied about it on his report pleaded not guilty on Monday. Spencer Finch, 45, entered not guilty pleas to charges of official misconduct, aggravated assault, unlawful possession of a weapon, tampering with public records, and perjury in arraignment held virtually before Superior Court Judge Joseph A. Portelli in Passaic County. “The defendant pleads not guilty to each and every charge,” Finch’s attorney, Anthony Iacullo, said during the brief proceeding. Finch rejected the state’s plea…