Garda? have a job doing this? The thieves have a job avoiding it! (9)

I believe the answer is:

detection

I'm a little stuck... Click here to teach me more about this clue!

'garda? have a job doing this? the thieves have a job avoiding it' is the definition.
The definition suggests a singular noun which matches the answer.

This is all the clue.

Can you help me to learn more?

(Another definition for detection that I've seen is " Discovery".)

I've seen this clue in The Irish Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.