1230                              Laws of Maryland                        [Ch. 780

Commission pursuant to an agreement with the National Capital
Planning Commission, for any other land held or acquired by the
United States, the State of Maryland, or any other public body or
agency, and in the sole discretion of the Commission deemed to be
as more suitable for playground and recreational purposes than the
land held by it and so offered in exchange. Any such exchange may
be accompanied by a partial cash consideration moving either to or
from the Commission; and any such exchange, effected as aforesaid,
shall be deemed and is declared to be an acquisition of land for the
public uses hereinabove in this sub-title defined.

General Powers

38.    Rules and Regulations; Posting and Publication; Violation.

The Commission may make rules and regulations for the govern-
ment and use of all land or other property acquired by it or under
its care. It shall cause these rules and regulations to be posted on
the property to which they apply. Following their promulgation,
they shall be published at least three times within sixty days, in one
or more newspapers published in the Metropolitan District, and such
posting and publication shall be sufficient notice to all persons. The
sworn certificate of any member of the Commission of such posting
and publication shall be prima facie evidence thereof. Any viola-
tion of any such rule or regulation shall be a misdemeanor punish-
able as such under the general penalty provisions of this Article.

39.    Park Police; Jurisdiction; County Police.

The Commission may appoint such park police officers as may be
necessary to protect the park system. They shall have concurrent
general police jurisdiction with the Montgomery and Prince George's
County Police within the parks and other areas and within build-
ings under the jurisdiction of the Commission. They shall possess
all the powers and authority vested by existing law in the Mont-
gomery and Prince George's County Police; but they shall be re-
sponsible to and under the supervision of the Director of Parks and
shall exercise supervisory jurisdiction over the park system. The
Montgomery and Prince George's County Police shall have the same
general police jurisdiction and responsibility for the apprehension
of criminals and detection of crime within the parks and other areas
and buildings under the Commission's jurisdiction as they have
elsewhere in their respective counties.

40.    Caretakers.

The Commission may assign living quarters in any house or
building within its jurisdiction to any person connected with the
Commission having the duties of caretaker or supervisory attention
respecting the same.

41.    Coordination of Transportation Services.

The Commission is authorized to investigate and report with
recommendations to the General Assembly of Maryland as to trans-
portation service and facilities within the Metropolitan District and
the coordination thereof upon the highways, roads, bridges, rail-