(a) In this title the following words have the meanings indicated.
(b) “Emergency” means a sudden or unexpected happening or an unforeseen combination of circumstances that calls for immediate action to protect the health, safety, welfare, or property of a person from actual or threatened harm or from an unlawful act.
(c) “Police officer” means a person who in an official capacity is authorized by law to make arrests and is:
(1) a member of the Department of State Police;
(2) a member of the Police Department of Baltimore City;
(3) a member of the Baltimore City School Police Force;
(4) a member of the police department, bureau, or force of a county;
(5) a member of the police department, bureau, or force of a municipal corporation;
(6) a member of the Maryland Transit Administration Police Force or Maryland Transportation Authority Police Force;
(7) a member of the University System of Maryland Police Force or Morgan State University Police Force;
(8) a special police officer who is appointed to enforce the law and maintain order on or protect property of the State or any of its units;
(9) a member of the Maryland Capitol Police of the Department of General Services;
(10) the sheriff of a county whose usual duties include the making of arrests;
(11) a regularly employed deputy sheriff of a county who is compensated by the county and whose usual duties include the making of arrests;
(12) a member of the Natural Resources Police Force of the Department of Natural Resources;
(13) an authorized employee of the Field Enforcement Bureau of the Comptroller’s Office;
(14) an authorized member of the Field Enforcement Division of the Alcohol and Tobacco Commission;
(15) a member of the Maryland–National Capital Park and Planning Commission Park Police;
(16) a member of the Housing Authority of Baltimore City Police Force;
(17) a member of the Crofton Police Department;
(18) a member of the WMATA Metro Transit Police, subject to the jurisdictional limitations under Article XVI, § 76 of the Washington Metropolitan Area Transit Authority Compact, which is codified at § 10–204 of the Transportation Article;
(19) a member of the Intelligence and Investigative Division of the Department;
(20) a member of the State Forest and Park Service Police Force of the Department of Natural Resources;
(21) a member of the Washington Suburban Sanitary Commission Police Force;
(22) a member of the Ocean Pines Police Department;
(23) a member of the police force of the Baltimore City Community College;
(24) a member of the police force of the Hagerstown Community College;
(25) an employee of the Warrant Apprehension Unit of the Intelligence and Investigative Division in the Department;
(26) a member of the police force of the Anne Arundel Community College; or
(27) a member of the police department of the Johns Hopkins University established in accordance with Title 24, Subtitle 12 of the Education Article.