The combination of criminal tempers and stressed life often leads to inmates going wild, which may mean violence to staff, each-other or themselves. Motives may vary from grudges, revenge, status or boredom to 'arranging' solitary confinement to avoid others. It's so common there are regularly trained 'extraction teams' and visiting administrative judges. Those and searches must also try to restrain various contraband, which isn't just weapons and drugs or moonshine but under rules anything not marked as approved in advance.
—KGF Vissers