No person shall take or have in his possession clams less than
two inches in longest diameter to the amount of more than 5% of any
one batch, provided that it shall not be unlawful to take such clams
or have the same in possession under the authority of a permit therefor
which the Mayor and City Council may grant for replanting for seed
purposes in waters of flats within the commonwealth.
All permits giving authority to dig clams shall be on the condition
that no clams shall be dug from any flats in the City from one hour
after sunset to one hour before sunrise of any day.
The Police Department shall prosecute any person who violates
the law or the provisions of this chapter governing the taking of
clams from the flats controlled by or under the authority of the City.