Padilla

Robert Gus Padilla appeals from two separate convictions. The trial court sitting without a jury found him guilty at one trial of possession for sale of a restricted dangerous drug (amphetamine) in violation of Health and Sáféty Code section 11911. At a separate nonjury trial he was convicted of possession of marijuana in violation of Health and Safety Code section 11530. For each offense defendant was sentenced to state prison for the term prescribed by law, sentences to run concurrently with each other and with any other sentence.

With respect to the first trial the record discloses that Officer McKnight, an expert in narcotics, on December 28,1967, received information from a reliable informant that a man named Don, who would be driving a tan 1962 Buick station wagon would meet behind Mondo’s Bar after dark that same evening with a second man who would be driving an *436 old model Ford pickup truck. Don would arrange for the purchase of a “keg of pills” (approximately 50,000 units of benzedrine) and the man driving the pickup truck would then rendezvous with someone named Bob who would be driving a late model Buick Riviera. From Bob he would receive the keg and the…