on the case

/ɒnðə kˈeɪs/

/ɑːnðə kˈeɪs/

on the case

used to refer to a situation in which one is taking legal action to solve a problem or crime

used when a specific task or a particular situation is being dealt with

Examples

1. Officers on the case are unable to find a motive.

2. We have two agents on the case.

3. Management is on the case now, and it looks as if things will return to normal soon.

4. Holmes then began at once to work on the case.