2019 Maryland Code
Title 21 - Vehicle Laws -- Rules of the Road
Subtitle 1 - Definitions; General Provisions
§ 21-103. Obedience to police officers and summonses
(a) (1) A person may not willfully disobey any lawful order or direction of any police officer.
(2) This subsection may not be construed to authorize a police officer at a motor vehicle checkpoint, as defined in § 25–114 of this article, to target only motorcycles for inspection or evaluation, except as appropriate at a police checkpoint established as part of a police search or investigation.
(b) (1) A police officer may summon witnesses to testify under oath on any charge brought under the Maryland Vehicle Law.
(2) A person may not willfully disobey a summons.