11.   Detectives believe the same man is responsible for nine attacks in one area, the Fishermead Estate in Milton Keynes.

12.   Detectives believe the victim may have been attracted to the area by the arrival of foreign ships.

13.   Detectives believe this attack was carried out by the same man who raped a student from Somerville college two months ago in public toilets in the city centre.

14.   Grace Barber suffered from a heart condition but detectives believe the incident played a part in her death.

15.   Detectives believe the thieves made off in the direction of Barnwell Place and are eager to hear from anyone who might have seen them.

16.   Detectives believe he was killed after a drugs deal went wrong.

17.   Detectives believe the pair were murdered when a drugs deal which Mr Pettitt was involved in went tragically wrong.

18.   DETECTIVES believe a hitchhiker may have witnessed the murder of a special constable in North Yorkshire.

19.   Detectives believe the same gunman may have been involved in all three killings, firing one shot before disappearing, and then leaving other terrorists to dismantle the rifle.

20.   Detectives believe the klller may have tried to burn the bodies in an attempt to hide the evidence.