Maryland Family Law Section 9-307
§ 9-307.
  (a)   A person who violates any provision of § 9-304 of this subtitle is guilty of a misdemeanor and on conviction is subject to a fine not exceeding $250 or imprisonment not exceeding 30 days.
  (b)   If the child is out of the custody of the lawful custodian for not more than 30 days, a person who violates any provision of § 9-305(a) of this subtitle is guilty of a felony and on conviction is subject to a fine not exceeding $250 or imprisonment not exceeding 30 days, or both.
  (c)   If the child is out of the custody of the lawful custodian for more than 30 days, a person who violates any provision of § 9-305(a) of this subtitle is guilty of a felony and on conviction is subject to a fine not exceeding $1,000 or imprisonment not exceeding 1 year, or both.
  (d)   A person who violates any provision of § 9-305(b) of this subtitle is guilty of a felony and on conviction is subject to a fine not exceeding $5,000 or imprisonment not exceeding 3 years or both.