Federal law sets some of the criteria for enlisting in the armed services; the Department of Defense (DoD) sets others. Federal law bars people from enlisting if they have been convicted of any felony, unless granted a waiver by the secretary of defense (10 USC § 504). (In practice the secretary does not review all waiver requests but they are all subject to review according to DoD policy. ) DoD requires enlistees to be of good moral character. The underlying purpose of the moral character enlistment standard, according to DoD, is to disqualify people likely to become disciplinary cases or security risks or disrupt good order, morale, and discipline (DoD directive 1304. 26, Dec. 21, 1993). Under this standard, people cannot enlist if they (1) are under any form of judicial restraint (e. g. , bond, probation, imprisonment, or parole) or have significant criminal records. DoD policy, like the federal law, allows waivers in meritorious cases.