The retailing of poisons is controlled by the Poisons Act 1972. The Poisons List Order 1982 contains a list of poisons covered by the Poisons Act.

Part I of this list contains poisons that may only be sold by a registered pharmacist.

Part II of the list contains the poisons which cannot be sold unless you are registered to do so with your Local Authority (in this case, Wandsworth Council's Environmental Services Team).