 Firstly, licence collection based on the honesty-based opt-in system, rather than the systems of other countries of opt-out, i.e.a person liable to pay the licence has to register on their own so there is no effective means to compel people to register and to prosecute those that fail to do so.Also as the licensing inspectors, who are usually postmen, do not have the right of entry to inspect premises and must get the owner's or main occupier's permission to enter.