White

The trial court found defendant guilty of possession of heroin (§ 11500, Health & Saf. Code); he admitted two prior convictions of violations of section 11501, Health and Safety Code. Defendant’s motion for new trial and application for probation were denied and he was sentenced to the state prison. At the same time probation on a previous conviction of sale of *393 heroin (§ 11501, Health & Saf. Code) granted in 1967 was revoked. Defendant appeals from the judgment in the main case and order revoking probation.

For five years Officer Bach had been receiving information concerning a residence at 315 Brooks Avenue in Venice. In December 1968 a reliable informant again told him that narcotic activity was being conducted there and that a man named “Boss Man” was living there, giving his description, the man had a green Buick and was selling heroin there taking property in exchange. Thereafter a surveillance team of eight officers, including Officer Bach, periodically conducted a surveillance at that address. Just after Christmas 1968 a second reliable informant told him that a male Negro by the name of Leon White (defendant) was selling narcotics there, he had bought…