After a moment, a single officer rode forward, slowly, across the bridge.

Whether it was the short time span or the expression on his face, every single officer there seemed to know.

Usually a single officer is assigned to work in a county or city.

He said that the error could not be attributed to a single officer.

More than six months later, not a single officer has accepted his invitation.

Not a single former senior officer of the company will be among the six defendants.

The door opened and a single officer entered the room.

And yet there's not been a single officer from life Police in touch with me.

Some of the guns were left with two men to work them, one was loaded and fired by a single officer.

In some areas, they will respond as a single officer.