law enforcement officer

(1) a law enforcement officer within the meaning of section 5541(3) and to whom the provisions of chapter 51 apply;

(2) a member of the United States Secret Service Uniformed Division;

(3) a member of the United States Park Police;

(4) a special agent in the Diplomatic Security Service;

(5) a probation officer (referred to in section 3672 of title 18); and

(6) a pretrial services officer (referred to in section 3153 of title 18).

(A) is a law enforcement officer within the meaning of section 8331(20) or 8401(17);

(B) in the case of an employee who holds a supervisory or administrative position and is subject to subchapter III of chapter 83, but who does not qualify to be considered a law enforcement officer within the meaning of section 8331(20), would so qualify if such employee had transferred directly to such position after serving as a law enforcement officer within the meaning of such section;

(C) in the case of an employee who holds a supervisory or administrative position and is subject to chapter 84, but who does not qualify to be considered a law enforcement officer within the meaning of section 8401(17), would so qualify if such employee had transferred directly to such position after performing duties described in section 8401(17)(A) and (B) for at least 3 years; and

(D) in the case of an employee who is not subject to subchapter III of chapter 83 or chapter 84—

(i) holds a position that the Office of Personnel Management determines would satisfy subparagraph (A), (B), or (C) if the employee were subject to subchapter III of chapter 83 or chapter 84; or

(ii) is a special agent in the Diplomatic Security Service.

(A) employees of the Bureau of Prisons and Federal Prison Industries, Incorporated;

(B) employees of the Public Health Service assigned to the field service of the Bureau of Prisons or of the Federal Prison Industries, Incorporated;

(C) employees in the field service at Army or Navy disciplinary barracks or at confinement and rehabilitation facilities operated by any of the armed forces; and

(D) employees of the Department of Corrections of the District of Columbia, its industries and utilities;

whose duties in connection with individuals in detention suspected or convicted of offenses against the criminal laws of the United States or of the District of Columbia or offenses against the punitive articles of the Uniformed Code of Military Justice (chapter 47 of title 10) require frequent (as determined by the appropriate administrative authority with the concurrence of the Office) direct contact with these individuals in their detention, direction, supervision, inspection, training, employment, care, transportation, or rehabilitation;

(A) an employee, the duties of whose position—

(i) are primarily—

(I) the investigation, apprehension, or detention of individuals suspected or convicted of offenses against the criminal laws of the United States, or

(II) the protection of officials of the United States against threats to personal safety; and

(ii) are sufficiently rigorous that employment opportunities should be limited to young and physically vigorous individuals, as determined by the Director considering the recommendations of the employing agency;

(B) an employee of the Department of the Interior or the Department of the Treasury (excluding any employee under subparagraph (A)) who occupies a position that, but for the enactment of the Federal Employees' Retirement System Act of 1986, would be subject to the District of Columbia Police and Firefighters' Retirement System, as determined by the Secretary of the Interior or the Secretary of the Treasury, as appropriate;

(C) an employee who is transferred directly to a supervisory or administrative position after performing duties described in subparagraph (A) and (B) for at least 3 years; and

(D) an employee—

(i) of the Bureau of Prisons or Federal Prison Industries, Incorporated;

(ii) of the Public Health Service assigned to the field service of the Bureau of Prisons or of the Federal Prison Industries, Incorporated; or

(iii) in the field service at Army or Navy disciplinary barracks or at any other confinement and rehabilitation facility operated by any of the armed forces;

whose duties in connection with individuals in detention suspected or convicted of offenses against the criminal laws of the United States or of the District of Columbia or offenses against the punitive articles of the Uniform Code of Military Justice (chapter 47 of title 10) require frequent direct contact with these individuals in their detention and are sufficiently rigorous that employment opportunities should be limited to young and physically vigorous individuals, as determined by the head of the employing agency;

(A) authorized under law to engage in or supervise the prevention, detection, investigation, or prosecution of an offense; or

(B) serving as a probation or pretrial services officer under this title;