1.   After they received the bomb threat, school officials immediately contacted the police.

2.   An unidentified caller contacted the police and gave the names of the men involved in the robbery.

3.   He contacted the police, hoping to claim the reward money offered by the bank.

4.   If you see either of these men, contact the police immediately.

5.   Middle-class victims of crime are more inclined to contact the police.

6.   Neighbours contacted police after seeing a man with a gun.

7.   Our only option now is to contact the police.