89OAG158
89OAG158
Cite as 89 Md. Op. Att'y Gen. 158
158
LAW ENFORCEMENT OFFICERS
AUTHORITY OF MUNICIPAL POLICE OFFICERS UNDER A MUTUAL
AID AGREEMENT TO OPERATE SOBRIETY CHECKPOINT IN A
PARTICIPATING MUNICIPALITY
August 16, 2004
The Honorable Doyle Niemann
Maryland House of Delegates
You have requested our opinion whether five municipal
corporations in Prince George’s County may enter into a mutual aid
agreement, under which their respective police departments will
jointly conduct sobriety checkpoints within those municipalities.
The sobriety checkpoints would be designed to enforce provisions
of the Maryland Vehicle Law that prohibit driving while under the
influence of alcohol or while impaired by alcohol or drugs. You
asked that we evaluate the legality of the mutual aid agreement in
light of a statutory provision that limits a police officer’s authority
to enforce the Maryland Vehicle Law outside the officer’s own
jurisdiction.
In our opinion, a mutual aid agreement may authorize police
officers from several municipalities to jointly conduct a sobriety
checkpoint within a participating municipality.
I
Background
You have provided a draft mutual aid agreement among the
City of Hyattsville, the City of Mt. Rainier, the Town of
Bladensburg, the Town of Riverdale Park, and the City of Greenbelt.
The preamble of the draft agreement recites that each municipality
has found sobriety checkpoints to be useful in protecting the health
and safety of its residents, but that the towns have been hindered by
resource and staff limitations in making full use of that enforcement
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Although stopping a driver at a sobriety checkpoint is a seizure for
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purposes of the federal and State constitutions, such a seizure may be
reasonable, particularly if it is conducted in a manner that limits officer
discretion. See Michigan Dep’t of State Police v. Sitz, 496 U.S. 444
(1990); Little v. State, 300 Md. 485, 479 A.2d 903 (1984); see also
Annotation, 74 ALR 5th 319. A failure to adequately staff a sobriety
checkpoint may render the resulting stops unreasonable and therefore
unconstitutional. See Little, 300 Md. at 498 - 99, citing State v.
Hilleshiem, 291 N.W.2d 314 (Iowa 1980).
technique. The preamble references Annotated Code of Maryland,
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Criminal Procedure Article (“CP”), §2-105, as the authority for the
agreement.
The draft agreement states that each of the signatory
municipalities has determined that “an emergency situation exists
that justifies the need for immediate support from the other signatory
municipalities....” Draft Agreement, §I. It provides that sobriety
checkpoints are to be planned, located, and operated in accordance
with State and federal law and with procedures established by the
municipal police chiefs; the police department in each municipality
is authorized to provide officers and equipment to assist in the
operation of a checkpoint established under the agreement. Draft
Agreement, §II.
The draft agreement authorizes officers acting under the
agreement to make arrests and exercise related police powers in the
jurisdiction where the sobriety checkpoint is located. Draft
Agreement, §III. It also sets forth procedures for an officer to follow
after an arrest is made, and provides that any follow-up investigation
is to be conducted by the jurisdiction in which the checkpoint is
located. Id.
The agreement is to last for one year, unless extended. A
municipality may terminate its participation on 30 days notice. Draft
Agreement, §IV.
Finally, the draft agreement includes provisions concerning
official immunities and the allocation of liability. Citing CP §2-105,
it provides that the signatory municipalities agree to waive claims
against each another related to the agreement, to indemnify and hold
each other harmless with respect to claims by third parties, and to
forego claims against each other for expenditures, unless otherwise
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A police officer exercising law enforcement authority outside the
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officer’s jurisdiction under this section must also notify the local
department and the State Police. CP §2-102(c).
agreed before the establishment of a security checkpoint. Draft
Agreement, §V. The draft agreement further affirms that police
officers and other employees acting under the agreement remain
employees of their respective jurisdictions and retain immunities and
other benefits related to that employment while acting under the
agreement. Id.
II
Analysis
A.
Extraterritorial Authority of Municipal Police Officer
At common law, a municipal police officer’s authority
generally did not extend beyond the geographical limits of the
jurisdiction in which the officer was employed. See Boston v.
Baltimore County Police Dep’t, 357 Md. 393, 395, 744 A.2d 1062
(2000); see also 89 Opinions of the Attorney General 66, 70 (2004).
However, there were exceptions to this general rule. For example,
under the common law, an officer could make an arrest outside his
or her jurisdiction if the officer was in “fresh pursuit” of a suspect.
Stevenson v. State, 287 Md. 504, 509-10, 413 A.2d 1340 (1980). A
police officer’s authority to engage in “fresh pursuit” has been
codified in statute. CP §2-301.
The General Assembly has also expanded the extra-territorial
authority of law enforcement officers in other respects. In particular,
under CP §2-102, a municipal police officer may exercise law
enforcement authority in another jurisdiction: (1) as part of a joint
investigation with other law enforcement agencies, as long as one of
the participating agencies has local jurisdiction; (2) when rendering
assistance to another police officer; (3) when acting at the request of
another police officer; and (4) in an emergency. CP §2-
102(b)(3)(i). In each of those circumstances, the officer must act
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in accordance with regulations adopted by the officer’s department.
CP §2-102(b)(3)(ii). However, this authority is subject to a key
limitation. It does not extend to enforcement of the Maryland
Vehicle Law outside the officer’s own jurisdiction. CP §2-
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Apparently this restriction was included in response to concern that
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an officer would lack radio contact, and therefore backup assistance,
outside the officer’s jurisdiction. See Boston v. Baltimore County Police
Dep’t, 357 Md. at 398.
Other statutes authorize municipal police to exercise extra-
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territorial law enforcement authority in circumstances not directly
pertinent to your inquiry. For example, a municipal police officer has
authority to enforce the Maryland Controlled Dangerous Substances Act
throughout the State to the same extent as a member of the State Police,
subject to certain notice requirements and in accordance with regulations
adopted by the Secretary of State Police. Annotated Code of Maryland,
Criminal Law Article (“CL”), §5-802. A municipal police officer may
also arrest an individual pursuant to a warrant, when the officer is
participating in a joint operation under an agreement between the officer’s
department and the police department in the jurisdiction where the arrest
occurs. CP §2-103.
The “governing body” of a municipality is defined as “the mayor
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and council, by whatever name known.” CP §2-105(a)(4). The governing
body must enter into the mutual aid agreement “by action as in the regular
routine for legislative enactment.” CP §2-105(b); see 89 Opinions of the
Attorney General 76 (2004).
102(b)(2); see Boston v. Baltimore County Police Dep’t, 357 Md. at
404; 89 Opinions of the Attorney General at 71-72.3
Pertinent to your inquiry, a municipal police officer may also
exercise extra-territorial authority under a mutual aid agreement. CP
§2-105.4
B.
Mutual Aid Agreements
CP §2-105 provides that “the governing body of a ... municipal
corporation may determine the circumstances under which the police
officers ... of the ... municipal corporation, together with all
necessary equipment, may lawfully go or be sent beyond the
boundaries of the ... municipal corporation to any place within or
outside the State.” CP §2-105(b). Further, the governing body may
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enter into a reciprocal agreement with another local government “for
the period that it considers advisable” and may “establish and carry
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The statute also authorizes out-of-state officers to enforce
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Maryland laws under a mutual aid agreement. CP §2-105(g).
out a plan to provide mutual aid by providing its police officers ...
together with all necessary equipment....” CP §2-105(e)(1).
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The statute requires that a mutual aid agreement contain certain
provisions concerning liability and indemnification related to the
extra-territorial activities of the parties under the agreement. In
particular, the parties must agree to waive any claims against each
other. CP §2-105(e)(2)(i). Also, the parties must agree to indemnify
and hold each other harmless from all third party claims for property
damage or personal injury. CP §2-105(e)(2)(ii). The statute
authorizes local governments to obtain necessary public liability
insurance for extra-territorial activities that arise out of mutual aid
agreements. CP §2-105(f). The statute grants both the municipality
and the officers who act outside their own municipality the same
immunity from liability that they possess for actions undertaken by
the officers within the municipality. CP §2-105(c)(2) and (3).
The statute contains no limitations with respect to enforcement
of the Maryland Vehicle Law. Nor does it explicitly indicate how
the authority conferred by a mutual aid agreement may relate to the
extra-territorial authority granted – and circumscribed with respect
to the Maryland Vehicle Law – in CP §2-102.
C.
Enforcement of Maryland Vehicle Law under a Mutual Aid
Agreement
The draft mutual aid agreement that you have provided would
authorize municipal police officers to act outside their respective
jurisdictions to establish sobriety checkpoints. A sobriety
checkpoint is designed to detect and deter drivers who are driving
under the influence of alcohol or while impaired by drugs or alcohol,
in violation of the Maryland Vehicle Law. See Annotated Code of
Maryland, Transportation Article, §21-902. This scenario thus raises
the question whether the limitation in CP §2-102(b) on the extra-
territorial enforcement of the Maryland Vehicle Law applies to
officers acting under a mutual aid agreement authorized by CP §2-
105.
Principles of statutory construction direct us first to the
language of the respective statutes. See, e.g., Facon v. State, 375
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Md. 435, 445, 825 A.2d 1096 (2003). Specific language in one
section, and the absence of language in the other, suggests that the
limitation on enforcement of the Maryland Vehicle Law does not
pertain to officers acting under mutual aid agreements. First, the
limiting provision of CP §2-102 states:
This section does not authorize a police officer
who acts under the authority granted by this
section to enforce the Maryland Vehicle Law
beyond the police officer’s sworn jurisdiction.
CP §2-102(b)(2) (emphasis supplied). This restriction thus
specifically qualifies the officer’s enforcement authority under “this
section” – i.e., CP §2-102; on its face it does not purport to limit the
officer’s extra-territorial authority under the common law or under
other statutes such as CP §2-105. See Seip v. State, 153 Md. App.
83, 90, 835 A.2d 187 (2003) (limitation in CP §2-102(b)(2) does not
apply to arrest made pursuant to “fresh pursuit” authority under
common law or its codification in CP §2-301). Indeed, the statute
states that it “does not impair a right of arrest otherwise existing
under the Code.” CP §2-102(e)(1).
Second, in authorizing the use of mutual aid agreements to
pool local police resources, CP §2-105 places no restrictions with
respect to enforcement of the Maryland Vehicle Law. Nor does it
make any reference to CP §2-102 or the limitation on the exercise of
extra-territorial enforcement of that law. Thus, the plain language
of the two statutes does not limit a municipal police officer’s
authority to enforce the Maryland Vehicle Law pursuant to a mutual
aid agreement.
It might be argued that CP §2-105, which does not explicitly
authorize officers to make arrests or conduct investigations, does not
itself grant any extra-territorial law enforcement authority to police
officers, but simply provides a mechanism for a local government to
authorize its officers to exercise the extra-territorial authority
granted in CP §2-102. Under that reading, the limitations in CP §2-
102, including the restriction on enforcement of the Maryland
Vehicle Law, would apply to officers acting under a mutual aid
agreement as well.
However, the legislative chronology of the two statutes negates
any suggestion that the limitations in CP §2-102 are to be read into
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A previous amendment had authorized mutual aid agreements
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within Allegany County without any restriction concerning emergencies.
Chapter 305, Laws of Maryland 1980. Although the draft agreement that
you provided recites that an emergency exists, this language is
unnecessary as a result of the 2001 legislation.
It is also notable that CP §2-105(c) provides for immunity from
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liability for officers acting under a mutual aid agreement, a provision that
would be unnecessary if a mutual aid agreement was no more than a
mechanism to exercise the authority set forth in CP §2-102, which
contains its own immunity provision. See CP §2-102(d).
The concern for officer safety that apparently underlies the
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limitation on enforcement of the Maryland Vehicle Law in CP §2-102 may
be less compelling when there is an opportunity to address that concern in
advance in a mutual aid agreement. See note 3 above.
CP §2-105. The predecessor of CP §2-105, which authorized local
governments to enter into mutual aid agreements for emergency
situations, was first enacted in 1969. Chapter 596, Laws of
Maryland 1969. The predecessor of CP §2-102 did not exist at that
time and was not enacted until 24 years later. Chapter 71, Laws of
Maryland 1993. Thus, an officer’s authority under a mutual aid
agreement obviously did not depend on the extra-territorial authority
ultimately granted in the 1993 legislation.
In 2001, the Legislature significantly broadened the scope of
CP §2-105 when it allowed mutual aid agreements for circumstances
other than emergencies. Chapter 188, Laws of Maryland 2001.
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There is no reference in the legislative file to the existing extra-
territorial authority of police officers in non-emergency situations
under CP §2-102, or to the limitation in that statute on enforcement
of the Maryland Vehicle Law. In any event, it does not appear that
the General Assembly contemplated that a mutual aid agreement
would be no more than a mechanism for officers to exercise
extraterritorial authority granted under another statute. Rather, in
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our view, by enacting CP §2-105(e), the General Assembly
delegated authority to local governments to give their police officers
extra-territorial authority under a mutual aid agreement – authority
that might include enforcement of the Maryland Vehicle Law in a
participating jurisdiction.
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III
Conclusion
If a municipality enters into a mutual aid agreement under CP
§2-105 to pool its resources with those of other municipalities to
operate sobriety checkpoints, its police officers may enforce the
relevant provisions of the Maryland Vehicle Law in the participating
jurisdictions under that agreement.
J. Joseph Curran, Jr.
Attorney General
Robert N. McDonald
Chief Counsel
Opinions and Advice
William R. Varga
Assistant Attorney General
Editor’s Note:
In 2005, the General Assembly amended CP §2-102 to confirm
the conclusion in this opinion. Chapter 534, Laws of Maryland
2005.