What kind of personal documents may detainees not retain while in custody?

The rationale behind why detainees may not retain intelligence value documents while in custody is rooted in national security and operational security concerns. Intelligence value documents can contain sensitive information that, if divulged or accessible to a detainee, could potentially compromise ongoing investigations, expose sources and methods, or undermine security measures in place. Such documents are classified and may relate to operations or information that, if disclosed, could be detrimental to the safety and effectiveness of law enforcement or military operations.

In contrast, other documents such as birth certificates, medical records, and legal documents are generally considered personal and may be retained by detainees for identification and health purposes or to seek legal representation. Retaining these types of records can aid detainees in understanding their rights and ensure that they are treated according to applicable laws and regulations. The retention of legal documents is particularly important for the detainee's ability to defend themselves or to navigate the legal system concerning their detainment.