Early 15th century **

No hosteler or owner of a hostelry within Lynn shall hide, conceal or disguise fish in his inn, but lay it out for sale in the market and sell according to market price (as recommended by the mayor), to the benefit of the people, upon pain of [its] confiscation and [his] imprisonment.

[This seems to be a variant of forestalling, with inn-keepers attempting to retail fish through their inns.]