Wish all officers were more like him, the technician mused, punching in the numbers that would open the cipher lock to his outer door.

There were two entry doors, each with cipher locks, and a closed-circuit television that monitored the dead space between the doors.

He was walking along past a set of closed metal doors with external cipher locks.

These were in a metal case with a cipher lock and a self-destruct device.

The marshal put his hand inside the frame and manipulated the rocker switches to release the cipher locks on the door.

In under a minute he was back to his office, fumbling with the cipher lock on the door.

The office door had a cipher lock with five rocker switches concealed in a steel container.

In order to enter the operations building we were in, you had to enter a code into a cipher lock to get through the first door.

A cipher lock is a sequence of numbers you must push, which are printed on a row of numbered levers.

Jack quickly tapped in the code to the electronic cipher lock and heard the telltale click of the lock releasing.