‘Vapor trail’ leads to Strip arrest of Paris Hilton, nightclub mogul Waits

Smoke wafting from a Cadillac Escalade on the Las Vegas Strip set off Paris Hilton's latest legal troubles when a motorcycle officer who suspected the smell was marijuana stopped the vehicle and police say a bag of cocaine later fell out of the 29-year-old socialite's purse.

It's the second time this year Hilton has been arrested on drug possession allegations, although authorities in South Africa dropped marijuana charges earlier this summer. In 2007, Hilton pleaded no contest to alcohol-related reckless driving and was sentenced to 45 days in jail.

This time, the hotel heiress was with her boyfriend, Las Vegas nightclub mogul Cy Waits, who manages a club inside the Wynn Las Vegas and was driving the black SUV that the officer stopped nearby at 11:22 p.m. Friday.