These images were of a higher quality than the previous ones and police hoped that they would generate new tips from the general public.

Efforts to trace the woman have failed and police hope the artist's impression will provide a new lead.

How could the police hope to find her and the others if he was dead?

And police are hoping to question these two men.

The police hope new witnesses will come forward with information that could assist their investigation.

About 20 tapes have already been handed over and the police hoped there would be more.

The police hope the new campaign will pursaude motorists to think again.

So far, there has been no word from the cab driver, who the police hoped might have seen the man.

Only then could the police hope to reconstruct what had befallen her.

The police also hope the public will grow more secure as the department's new crime-fighting strategies take hold.