Maryland Code, Natural Resources § 4-505

A person may not molest, disturb, destroy, or catch and carry away fish belonging to another person from any boat, live box, crab pot, trot line, or the pocket or crib of any pound net or enclosed or gilled in any fish net of any kind, or take or carry away any net or gear belonging to another person used in catching fish. This section does not apply directly or indirectly to seine haulers actually engaged in laying and taking up nets when making a haul.