Section 48. In case of seizure by any duly authorized officer of any lobsters or lobster meat contained in any barrel, box or other container which is not marked as provided in section forty-seven, or of any lobster measuring less than the length prescribed by section forty-four, such lobsters as are alive and measure less than such prescribed length shall be liberated by the director, and all other such lobsters and all such lobster meat found in such barrel, box or other container shall be held and disposed of as provided in section fifty.