1.   After seven months on the case, the police failed to turn up any real clues.

2.   But police failed to trace the man.

3.   In the other cases, police either failed to file charges, or grand juries refused to indict.

4.   Police have so far failed to establish a connection between the two murders.

5.   Police have so far failed to establish a link between the two murders.

6.   The police are failing to take adequate measures to check the growth in crime.

7.   The police have failed to apprehend the culprits.

8.   When local police failed to find the killer, the FBI was brought in on the case.

9.   When the police failed to control the rioters, the Governor called out the National Guard.