the use of shus within the federal bureau of prisons is regulated under . when placed in the shu, prisoners are either in "administrative detention status", a non-punitive status which removes prisoners from the general population when necessary to ensure the safety, security, and orderly operation of correctional facilities, or protect the public, or "disciplinary segregation status", a punitive status imposed only by a discipline hearing officer (dho) as a sanction for committing prohibited acts. there are more than 100 prohibited acts, all of which may result in solitary confinement, including unauthorized physical contact such as kissing, using abusive or obscene language, feigning illness, circulating a petition, insolence towards a staff member, engaging in or encouraging a group demonstration or protest, and participating in or encouraging a labor strike (also known as a prison strike), gang activity, among others.