Maryland Code, Correctional Services § 10-701

(i) investigate:

(ii) adopt regulations for the conduct of its investigations; and

(iii) oversee and coordinate all intelligence efforts within the Department.

(i) engaged in fresh pursuit of a suspected offender;

(ii) requested or authorized to do so by the chief executive officer or chief police officer of a county;

(iii) necessary to facilitate the orderly flow of traffic to and from property owned, leased, operated by, or under the control of the Department;

(iv) necessary to investigate and protect property that is owned, leased, operated by, or under the control of the Department;

(v) engaged in an active and official investigation of the conduct of an employee of the Department when the employee's alleged conduct will compromise the safety or security of the Department's facilities or programs;

(vi) engaged in an active and official investigation of an incarcerated individual in the custody of the Commissioner of Correction or the Commissioner of Pretrial Detention and Services, an incarcerated individual subject to the jurisdiction of the Patuxent Institution, or an individual sentenced to probation or released on parole or mandatory supervision; or

(vii) ordered to do so by the Governor.

(i) when in an incorporated municipality, the chief of police, if any, or the chief's designee;

(ii) when in a county that has a county police department, the chief of police or the chief's designee;

(iii) when in a county without a police department, the sheriff or the sheriff's designee;

(iv) when in Baltimore City, the Police Commissioner or the Police Commissioner's designee;

(v) when on any property owned, leased, operated by, or under the control of the Department of Natural Resources, the Secretary of Natural Resources or the Secretary's designee;

(vi) when on any property owned, leased, operated by, or under the control of the Maryland Transportation Authority, the Maryland Aviation Administration, or the Maryland Port Administration, the respective chief of police or the chief's designee; and

(vii) unless there is an agreement otherwise with the Department of State Police, the Department of State Police barrack commander or designee.

(i) in advance, if practicable; or

(ii) if advance notification is not practicable, as soon as possible after the exercise of the powers.