Inmate uniforms, modular holding cells, handcuffs, transport hoods, leg irons, belly chains, and multi-point restraint systems. PX:Direct
has it all for the correctional facility do-it-yourselfer.
I'm sure there must be some legitimate reason an individual might need to buy this stuff. I just can't think of one off the top of my head. Wait. Here's an idea. Amateur experimenters could use it to recreate the Stanford Prison Experiment
in their basement.