No need to disable comm, and you'll only need one guard to monitor the force-field.

Typically, one or two guards monitor feeds from the cameras, Mr. Miller said.

For most of that time, when she visited him they spoke through a glass partition by telephone while guards monitored their conversation to prevent political discussion.

Beyond, on the prison grounds, inmates walk by speaking softly as guards monitor their activity.

Inside the cage, two guards in gray, unmarked uniforms monitored a bank of video screens.

Security at her Georgian mansion on the shores of Lough Killargan was notoriously tight, with permanent guards and closed-circuit TV monitoring the five-mile perimeter fence.

A guard monitors everyone entering and leaving the building, and Mrs. Molinelli herself quizzes every child she finds wandering the hallways during class time.

To further keep the inmates from telling anyone, the guards also monitored their phone calls and threatened to have them sent to other prisons farther from their families, according to the indictment.

At the post where guards monitored the dormitories on televisions, all 12 of the television screens were smashed and file cabinets and desks were upended.

Inside the turret there were twelve small TV screens by means of which the guards monitored the approaches to the building and knew when to open the electric door.