MARK Gregory Valadez, 33, was arrested on a minor charge. When he arrived at  Oklahoma City jail, he was frisked for contraband.

Officers did not discover the loaded Derringer pistol inside his rectum.

The gun was only discovered when Valadez boasted of it to other prisoners.

Mr Valdez was soon moved to a local hospital for treatment since he was “suffering from the adverse impact of placing a Derringer inside his body”.

Spotter