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of the last of a series of visits to Yee's house, shows that this was another instance of delivery of heroin. The statement is preceded by the sentence, "Each time [I have driven Wong Sun to Yee's] Wong Sun gave me $10 or $15 for doing it and also, he gave me a little heroin—enough to put in 3 or 4 cigarettes". Moreover, the confession is specific that, on the first of this series of well-paid trips to Yee's house, heroin was delivered to Yee. The clear effect is that heroin was delivered at Yee's house on Tuesday night, and the supporting evidence of the federal agent attests that there was heroin at Yee's house on Thursday morning.
Various other elements of the confession were corroborated. Toy admitted a series of visits to Yee's house. It was reasonable to conclude that this admission was true in the light of Toy's very detailed familiarity with the house—as disclosed in the testimony of Agent Nickoloff as to what was said when Toy sought, on June 4, to divert the officers to Yee as the seller of narcotics.
The statement in Toy's confession specifically placing him at Yee's house on the night of June 3 was further substantiated in Agent Nickoloff's testimony that Toy admitted to him on June 4 that he had been at Yee's house the night before. Toy also stated, in his confession, that Yee gave him heroin out of friendship. The aspect of friendship was supported in Yee's testimony at the trial. He said that he had known Toy since 1951 or 1952 and that Toy and
