Is it legal to be required to touch someone at my job? How?

I work at a state correctional facility, I am a correctional officer. At the beginning of the shift, and, anytime entering the facility, all employees are required to undergo a visual and physical search of their person. In my case I am a male, so, another male officer is directed to "pat search" me which includes, running his gloved hands over all extremities then, from behind, place one hand between the legs to the front pant pocket, then drag the hand across the genitals to the opposite pocket. Then pushing the hand up under the genitals in the crotch and drag the hand straight back and up the buttocks. Not only am I required to undergo this procedure, but I am also required to administer this procedure if directed by my supervisor. If not I face disciplinary actions.