CJA Form 21 Instructions are instructions for completing the Criminal Justice Act (CJA) Form 21, which is used to document the services provided by private criminal defense attorneys. The form is used to request compensation for services provided to a client under the CJA. The form requests information such as the attorney's name, the case information, the services provided, the hours worked, the hourly rate, and the amount of compensation requested. There are three types of CJA Form 21 Instructions: (1) CJA Form 21 Instructions for Federal Cases, (2) CJA Form 21 Instructions for State Cases, and (3) CJA Form 21 Instructions for Magistrate Cases.