A defendant will receive Class X sentencing for his narcotics conviction because he was 21 when he was convicted, even though he was 20 at the time of the offense, a state appeals panel ruled Tuesday.Under Illinois law, defendant Joseph Brown can be sentenced anywhere between six to 30 years in prison “when a defendant, over the age of 21 years, is convicted of a Class 1 or Class 2 felony,” as part of the Class X recidivist provision.Brown was 20 years old when a Chicago police officer arrested him on July 3 …