Nearly all law enforcement agents are trained to some degree in hand to hand combat. In fact this type of training has literally existed for thousands of years. For example, Roman law enforcement, the Vigiles, were trained in grappling and basic striking techniques to subdue individuals without lethal force when necessary.

Suggesting a sports entertainment organization like the UFC offer training for the FBI is idiotic, but that's what we've come to expect from Trump and the misfits and clowns he surrounds himself with. Mixed martial arts has numerous rules of engagement that don't exist in real world situations. For instance, no eye gouging, no biting, no groin strikes, no fish hooking, and dozens of other rules. And you can't tap out in real life. Some techniques are surely useful but training law enforcement is not what the UFC does; they put on shows.

There are many many training organizations and martial arts gyms already being utilized that offer much more comprehensive police specific hand to hand self defense training.