424                                LAWS OF MARYLAND                         [CH. 203

(a)     "Department" shall mean the Police Department of Balti-
more City as constituted and established by this subtitle.

(b)    "Commissioner" or "Commissioner of Police" shall mean the
Police Commissioner of Baltimore City.

(c)     "Members of the department" shall mean and include all
persons and personnel employed by the department, whether
civilian employees or police officers.

(d)    "Police officers" shall mean all those members of the depart-
ment having and exercising the powers of police officers, as pro-
vided in this subtitle, and shall specifically include the Police Com-
missioner of Baltimore City, all deputy police commissioners, bureau
chiefs and deputy chiefs, directors of divisions designated by the
Commissioner as police officers, and any other members of the depart-
ment so designated by the Commissioner pursuant to the authority

vested in him by this subtitle CHIEFS AND DEPUTY CHIEFS.

AND SUCH OTHER RANKS OR POSITIONS WHICH THE COM-
MISSIONER MAY DETERMINE REQUIRE EXPERIENCE AS
A POLICE OFFICER AS A PREREQUISITE.

(e)     "Civilian employees" shall mean all members of the depart-
ment other than police officers or those designated as such by the
Commissioner.

(f)    "Examining Authority" shall mean the Civil Service Com-
mission of Baltimore.

Police Department of Baltimore City—in general
527.

(a)    The Police Department of Baltimore City is hereby consti-
tuted and established as an agency and instrumentality of the State
of Maryland. The purpose generally of the department shall be to
safeguard the lives and safety of all persons within the City of
Baltimore, to protect property therein, and to assist in securing to
all persons the equal protection of the laws. The department shall
have, within the boundaries of said city, the specific duty and
responsibility to preserve the public peace; to detect and prevent
the commission of crime; to enforce the laws of this State, and of
the Mayor and City Council of Baltimore not inconsistent with the
provisions of this subtitle; to apprehend and arrest criminals and
persons who violate or are lawfully accused of violating such laws
and ordinances; to preserve order at public places; to maintain the
orderly flow of traffic on public streets and highways; to assist law
enforcement agencies of this State, any municipality or the United
States in carrying out their respective duties; and to discharge its
duties and responsibilities with the dignity and manner which will
inspire public confidence and respect.

(b)    The department shall also perform the duties set forth in
subsection (a) of this section within those areas, outside the corpo-
rate limits of the City of Baltimore, which are, from time to time,
owned, controlled, operated or leased by the Mayor and City Council
of Baltimore, or any agency, commission or department thereof. In
such areas, the authority and duties of the department shall be con-
current with that of any police department or police agency in the
jurisdiction in which such areas are located, and nothing contained