What type of items are generally prohibited during inspections?

The correct choice regarding items that are generally prohibited during inspections is centered on illegal substances and weapons. This is because ensuring the safety and security of personnel and the environment is a fundamental objective of inspections. The presence of illegal substances can pose significant risks to both individuals and the larger military community, as they can lead to unsafe behaviors, impaired judgment, and violate laws and regulations.

Prohibiting weapons is similarly crucial since they present a direct threat to the safety of personnel. Inspections are designed to ensure that the environment is free of harmful items that could compromise security or lead to conflict within the ranks.

The other choices, such as authorized firearms, personal hygiene products, and military uniforms, are generally acceptable under certain circumstances. Authorized firearms are permitted if they meet specific guidelines and are carried by individuals designated to have them. Personal hygiene products and military uniforms are standard items for personnel and do not pose the same risks as illegal substances or weapons. Thus, the focus on prohibiting illegal substances and weapons during inspections is key to maintaining a secure and safe environment for all personnel involved.