What is a common characteristic of contraband?

A common characteristic of contraband is that it includes articles that have been altered from their intended purpose. This could mean items that are modified to serve a use that is not permissible within a correctional facility, thus compromising security or safety. For example, tools that might be intended for maintenance could be repurposed into weapons. This alteration signifies that the item is being misused, which is a hallmark of contraband within correctional environments.

While the other choices touch on aspects of contraband, they do not encapsulate its essential characteristic as clearly. Authorized items cannot be classified as contraband, regardless of conditions. Additionally, while possession of excess food supplies could be considered contraband, it is more specific and does not universally apply. Lastly, items that are never seen in facilities do not accurately represent contraband, as contraband items may frequently be present, albeit illicitly. Therefore, the defining feature of contraband revolves around the alteration of items from their intended purpose, making it a critical concept in understanding security in correctional settings.