He was terrified of living in a police state.

The head of the police station explained the details of the incident to the press.

He was caught by the secret police.

A municipal police was established in my town.

He is majoring in criminology at university.

He was arrested for committing a criminal act.

He denied the fact of the crime.

He is a renowned criminologist who has contributed to many crime analyses.

He is known as an expert in criminal investigation.

He is known as an expert in criminology.