This de Blasio administration official set one heckuva bad example for the teens she was hired to keep out of jail.

Reagan Stevens, a deputy director in the Mayor’s Office of Criminal Justice, and two young men were arrested for illegal weapons possession while sitting in a double-parked car near the scene of a Saturday night shooting in Queens, cops said.

A loaded, 9mm semi-automatic pistol with its serial number defaced was hidden in the car’s glovebox, and there was a spent shell casing on the floor near Stevens’ feet in the rear of the 2002 dark red Infiniti SUV, law enforcement sources said.

The trio’s arrest followed a burst of five gunshots that activated an NYPD “ShotSpotter” device in Jamaica at 9:42 p.m. Saturday, sources said.

Read more at the New York Post.