Which type of search requires particularized suspicion that contraband is concealed on the person?

A strip search is the correct answer because it is a type of search that requires a reasonable belief or particularized suspicion that the individual is concealing contraband or illegal items on their person, specifically under clothing. This search goes beyond a general search and involves a thorough inspection of a person's clothing and the areas of the body not covered by clothing, usually in a private setting to protect the individual's dignity.

The need for particularized suspicion regarding contraband arises from the heightened intrusion on personal privacy that a strip search represents. Law enforcement must base this level of search on specific evidence or behavior that indicates the likelihood of concealed items, rather than conducting the search on arbitrary or generalized suspicion.

Other types of searches, like body cavity searches, typically require even higher standards of justification due to their invasiveness and the legal considerations surrounding personal privacy and bodily autonomy. Consent searches depend on the individual's willingness to allow the search without the need for such suspicion, while protective sweeps are preemptive actions taken to ensure officer safety in a broader investigative context, rather than focused on evidence of contraband on a person.