Md. Code, Criminal Law § 9–402

(a) This section does not apply if the warrant is for a traffic offense.

(b) A person may not harbor a fugitive to prevent the fugitive’s discovery or arrest after:

(1) being notified, or otherwise knowing, that a felony warrant was issued for the arrest of the fugitive; and

(2) being notified that harboring the fugitive is a crime.

(c) A person may not knowingly harbor a fugitive who is avoiding:

(1) prosecution;

(2) custody; or

(3) confinement after conviction of a felony.

(d) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 1 year or a fine not exceeding $1,000 or both.