New York City Council members on Tuesday approved Mark Peters as commissioner of the Department of Investigation, the watchdog office that probes city employees and contractors for corruption, fraud, waste or unethical conduct.

Mayor Bill de Blasio nominated Peters, 48, a partner at Edwards Wildman Palmer and the mayor’s former campaign treasurer, for the position, which pays $205,180 a year. On Tuesday, 48 council members supported Peters’ nomination, two opposed and one abstained.