Adult non-citizens cannot "admit" to having committed drug offenses or crimes involving moral turpitude if those offenses were committed while the non-citizens were still juveniles, and the conduct required mandatory delinquency treatment under the law of the convicting jurisdiction. Matter of M-U-, 2 I& N Dec. 92 (BIA 1944). Be sure to look to the convicting jurisdictions rules on when a child can be charged as an adult.