The Fresh Meat (Hygiene and Inspection) Regulations 1995

4.  No person shall—

(a) urinate, defecate or spit except in a sanitary convenience;

(b) bring into or keep in any part of the premises containing fresh meat any article liable to prejudice the maintenance of hygiene or the proper performance of the functions reserved for that part of the premises;

(c) wipe down any carcase or any offal;

(d) use tobacco (including snuff) in any part of the premises which may contain fresh meat or blood intended for human consumption or while he is handling any such meat or blood;

(e) change his clothes in any part of the premises which may contain fresh meat;

(f) take any fresh meat or blood intended for human consumption, or any item of equipment which might come into contact with such meat or blood, into a room or other place which contains a sanitary convenience;

(g) bring into, or permit to be brought into or remain in the premises, any creature (other than one of the species referred to in regulation 2 or a working dog); or bring any working dog or permit any such dog to be brought into or remain in any part of any premises used for the production, cutting up, handling or storage of fresh meat or for the storage of blood intended for human consumption.