If a match is found, DNA analysts can provide investigators with a lead as to the potential perpetrator of an unsolved crime.

A fourth is our failure to capture the anthrax killer, suggesting to Iraq and other potential perpetrators that they might get away with an attack.

Any profile would fit too many students to be useful and may not apply to a potential perpetrator.

"We hope there will also be a deterrent value for potential perpetrators who recognize their victim may be a police officer."

Will it help them to think about their own moral choices as potential perpetrators, victims, bystanders?

And when women do come, they are around other vets, who are all potential perpetrators.

He charged that some officers are treating motorists as potential perpetrators rather than customers, at a time when the authority is stressing customer service.

On the other hand, she had to let potential perpetrators know she knew, and hope to God they had enough sense to stop.

The basic aim is to prevent terrorist acts by detecting potential perpetrators before they enter the country.

It should be emphasised that children who use new technologies, and especially the Internet, are at risk of contact with potential perpetrators of sexual offences.