1.   A lorry driver used his mobile phone to alert police, affter spotting that Walker was drinking from a half bottle of spirits.

2.   The clerk hit a button to alert police, and officers arrived about a minute later, Timberlake said.

3.   But the group also contends that cell phones are a potential lifesaver because stranded motorists can call for help or alert police to reckless drivers.

4.   That sort of alert police work stood in sharp contrast to the sloppy investigation of Dutroux.

5.   The gun battle began Tuesday afternoon when three armed men tried to rob a merchant, who was able to alert police.

6.   Two women managed to escape through a window and alert police, who stormed the apartment Wednesday, rescuing the third woman and arresting the four suspects.

7.   The watchman could only alert police an hour later.