Is there evidence that she .refuses fares who are not white British ? No. So what's the problem? If the council have some policy about standards in taxis, such as no stickers or advertising, only the driver's cab licence to be displayed, the ban would make some degree of sense. Black cabs in London have an extraordinary amount of rules about everything from construction to use; it's only in recent years that black cabs did not have to be black and could carry advertising; so this council may have such rules. Otherwise it is hypersensitive thinking; the St George's flag has certain unfortunate connections, like the Confederate flag in the States, and putting 'local driver' on it is a bit odd, since, presumably, every licensed driver for a town or borough is local and/or has proven knowledge of local streets and the locality.