5 U.S.C. § 7532: Suspension and removal

Notwithstanding other statutes, the head of an agency may suspend without pay an employee of his agency when he considers that action necessary in the interests of national security. To the extent that the head of the agency determines that the interests of national security permit, the suspended employee shall be notified of the reasons for the suspension. Within 30 days after the notification, the suspended employee is entitled to submit to the official designated by the head of the agency statements or affidavits to show why he should be restored to duty. Subject to subsection (c) of this section, the head of an agency may remove an employee suspended under subsection (a) of this section when, after such investigation and review as he considers necessary, he determines that removal is necessary or advisable in the interests of national security. The determination of the head of the agency is final. has a permanent or indefinite appointment; has completed his probationary or trial period; and is a citizen of the United States; a written statement of the charges against him within 30 days after suspension, which may be amended within 30 days thereafter and which shall be stated as specifically as security considerations permit; an opportunity within 30 days thereafter, plus an additional 30 days if the charges are amended, to answer the charges and submit affidavits; a hearing, at the request of the employee, by an agency authority duly constituted for this purpose; a review of his case by the head of the agency or his designee, before a decision adverse to the employee is made final; and a written statement of the decision of the head of the agency.