| Phone Tap
The phone tap is used to monitor phone calls of your prisoners through a Phone Booth. The Visitation Booth can also be connected to the phone tap. This can help to increase the chances of revealing contraband or predicting riots. It requires a guard to operate it at all times. The phone tap requires electricity to function, and must be wired to any phone booths you wish to monitor. Before a phone tap can be installed in your prison, surveillance must be researched in the bureaucracy tab.
The information gathered from phone taps will not be utilised automatically by the guards or given to the player. You will have to check the Informants view in the Intelligence menu regularly to make use of this feature.
Only available guards will operate the phone tap device, i.e. guards that are not deployed in any room, or for patrol, or needed for tasks like escorting prisoners.