Q. M. was adjudicated delinquent for possessing marijuana.1 Q. M. appeals, contending that the State failed to establish the chain of custody and to lay a proper foundation for admission of the test results of the marijuana. He also challenges the sufficiency of the evidence. For reasons that follow, we affirm. When reviewing the sufficiency of evidence supporting a juvenile court’s adjudication, we construe the evidence in favor of the court’s adjudication and determine if a rational trier of fact could have found beyond a reasonable doubt that the juvenile committed the acts charged.2 So viewed, the evidence shows that Mark Courson, a teacher, observed Q. M. and N. L., another student, standing together near the school lockers. Courson saw Q. M. hand “something” to N. L., who then shut the locker door and left. Courson reported the suspicious incident to Jeff Garrett, the school principal, via email.3 Separately, N. L. approached Garrett and told him that Q. M. had offered to sell him cocaine on the school bus; N. L. also told Garrett that Q. M. gave him marijuana, which he put in his locker. According to N. L., after he declined Q. M.’s offer to sell him marijuana and cocaine, Q. M. placed a baggie containing what appeared to be cocaine in his shoe.
Garrett contacted the police, who recovered a plastic bag containing marijuana from N. L.’s locker and a baggie containing a white powder from Q. M.’s shoe. The bag found in N. L.’s locker tested positive for marijuana, while the item taken from Q. M.’s shoe tested negative for any controlled substances.
