line of duty

He and the others were killed in the line of duty.

Or the three women who lost their lives in the line of duty?

Six other American military women also died in the line of duty.

But the men you're likely to meet in the line of duty are going to be from the old school.

To talk to no one except in the line of duty.

He's been shot 47 times in the line of duty.

He had his eyes shot out in the line of duty.

Sometimes we'd watch for hours on end, all in the line of duty.

These people killed four Federal officials in the line of duty.

Not a single American has been killed in the line of duty.