Investigators are trying to identify the policeman in uniform, seen in surveillance photos having sex with a woman on the hood of a car.
The bizarre scene that was witnessed by a near Chihuahua, was filmed by a hidden camera set up by New Mexico police to catch the vandalism on a neighbourhood property.
The photos show the officer in full uniform with his back to the camera and the woman splayed out on the hood with her jeans around her ankles and breasts exposed.
The New Mexico TV station obtained images after a freedom of information request.
State Police refused to comment on the case, although the photos were already public.