Which of the following is a common type of contraband found in correctional facilities?

Illegal drugs are considered a common type of contraband found in correctional facilities. These substances are prohibited due to their potential to disrupt the safety and security of the institution. The presence of illegal drugs can lead to an increase in violence, affect the health of inmates and staff, and undermine the rehabilitation process. Law enforcement and correctional officers continually search for and seize illegal drugs as part of their efforts to maintain order and safety within the facility. This reflects the ongoing challenge facilities face in preventing substance abuse within their populations and the risks associated with drug trafficking in and out of correctional environments.

In comparison, while books and educational materials can be highly beneficial for inmates, they are typically allowed and encouraged to promote literacy and education. Cell phones and electronic devices, though they can also pose security risks, are typically classified specifically as contraband due to their capacity to facilitate unauthorized communication. Clothing and personal hygiene products are usually provided to inmates and are not considered contraband unless they are misused or not sanctioned by the facility's rules.