Briggs

*819 Opinion

Appellants pled guilty to possession of marijuana for sale (Health & Saf. Code, § 11359). They are appealing from the judgments (orders granting probation) under the authority of Penal Code section 1538.5, subdivision (m).

Shortly after midnight on September 12, 1975, Los Angeles County Deputy Sheriff Bruce Wright was proceeding westbound on Firestone Boulevard in a marked patrol vehicle with his partner, Mike Waters, when he observed a vehicle eastbound on Firestone Boulevard two blocks away cross the double yellow line from the number one eastbound lane into the number one westbound lane. The vehicle then swerved back across the double yellow line and the number one westbound lane into the number two lane. After nearly striking the curb, the vehicle proceeded back across the number two lane in front of a vehicle in the number one lane, causing that vehicle to brake and swerve into the number two lane to avoid a collision.

As the erratically driven vehicle passed the deputy sheriffs’ patrol car, Deputy Wright made a U-tum and pursued it. His intent was to stop the vehicle to ascertain if the driver was driving under the influence. He observed the vehicle cross…