When should the warden search the individual under arrest?

The correct choice highlights the principle of conducting a search based on a reasonable belief that an individual may be in possession of contraband. This is rooted in the legal standard that allows law enforcement officers, including wardens, to ensure their safety and the safety of others, as well as the integrity of the judicial process.

When a warden has reasonable grounds to suspect that an individual may possess illegal items or contraband, the search becomes a necessary step in preventing potential harm or the destruction of evidence. This proactive measure helps maintain order and ensure compliance with the law, reflecting the balance between an individual's rights and the need for safety and security in the enforcement of laws.

Other options either authorize a search based on the individual's request, which does not account for the broader legal context of safety and public interest, or suggest procedural steps that may not align with the priorities of immediate safety. For example, while reading rights is an essential part of the arrest procedure, it does not legally justify a search absent the cause to believe contraband is present. Thus, understanding the basis for conducting searches is key for wardens, which centers on the presence of reasonable suspicion rather than procedural formalities or individual requests.