But it wasn't until last Thursday that the authorities traced the car to Jordan, through the car's vehicle identification number.

A truck was found nearby, with a license plate the authorities traced to Mr. Rudolph.

And other evidence has helped the authorities trace links among the bombing rubble.

If hackers use the same nicknames repeatedly, this can help the authorities to trace them.

The authorities used heat-sensing equipment and traced pings to nearby cellphone towers.

The postal authorities will trace her; I'll send it registered to her last known address.

They said the poison was found in the basement of the man's home after the authorities traced two letters sent to them earlier this year.

British authorities traced the risk of radioactive contamination to a dozen sites around London and commercial jets carrying more than 33,000 people.

In late May, authorities trace the tapes' distribution to Germany and a factory is shut down.

Under an earlier system, authorities could trace an emergency call placed on a cellphone only to the nearest cellphone tower.