Maryland Statutes
Subtitle 3 - Health Officers
Section 3-307 - Right of Entry

(a)    In the performance of official duties, a health officer may enter and inspect any private house if the health officer:
        (1)    Has obtained consent to enter and inspect;
        (2)    Has obtained a warrant; or
        (3)    Does not have time or opportunity to obtain a warrant and an exceptional or emergency situation exists.
    (b)    In the performance of official duties, a health officer may enter any place of business or employment.