In the line of duty
Definition 1 of 1
Pro Tip 1/3Job Risk
Use when someone is at risk due to their job responsibilities, often police or military. 
He saved lives in the line of duty as a firefighter.
Pro Tip 2/3Honor Context
Often highlights honorable actions during work-related risks, suggesting respect. 
The officer acted with honor in the line of duty.
Pro Tip 3/3Unexpected Events
Implies facing unforeseen dangers or situations while on the job. 
During the storm, the coast guard rescued civilians in the line of duty.