Question

the inspector took it ..... himself to catch the criminals​

Answer 1

Answer:

Hiee

Your question is incomplete dear

Answer 2

Answer:

The correct word that can be filled in the blank is either 'on' or 'upon'.

The inspector took it on himself to catch the criminals

or

The inspector took it upon himself to catch the criminals.

The phrases 'took it on himself' or 'took it upon himself' are common in grammar and it basically means taking the responsibility of something without being assigned to it. In other words, it's like deciding to do something without anyone's consent.