Section 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.Amended by 2015 Md. Laws, Ch. 287,Sec. 1, eff. 10/1/2015.