Md. Code, Labor and Employment § 9–202

(a) An individual, including a minor, is presumed to be a covered employee while in the service of an employer under an express or implied contract of apprenticeship or hire.

(b) A minor may be a covered employee under this section even if the minor is employed unlawfully.

(c) To overcome the presumption of covered employment, an employer shall establish that the individual performing services is an independent contractor in accordance with the common law or is specifically exempted from covered employment under this subtitle.