He was caught by the secret police.

A municipal police was established in my town.

He is an excellent doctor.

He is a famous author, and his works are loved by many readers.

The government declared a state of emergency to prevent the spread of the new coronavirus.

He is known as an expert in criminology.

At the airport, drug dogs are sniffing passengers' luggage.

My mobility dog helps me live my daily life.

Detection dogs are trained to find explosives.

The hyena is a nocturnal animal, mainly carnivorous.