A town police officer began full-time work this week as a replacement for an officer who resigned after failing to pass his physical agility test at the state training academy, Police Chief Hank Dusenbery said Friday. Chad Chubbuck, 31, of Lincoln joins the department from its reserve police officer ranks. He had been a reserve officer for a year. Chubbuck is a former full-time funeral parlor director from Clay’s Funeral Home of Lincoln and hopes eventually to specialize in statement analysis, the police chief said. A 1993 graduate of Penobscot Valley High School in Howland, Chubbuck hopes to be accepted into the municipal police training academy’s next 18-week class on Jan. 22, he said. He has already finished a 100-hour course at the academy. He replaces Officer Shane Hughes, who submitted his resignation in July, Dusenbery said.