Bancroft nodded. 'For what it's worth, they did, yes. West Coast law does not require taxi companies to keep records of their fleets' whereabouts at any given time. Some of the more reputable firms do, of course, but there are others that don't. Some even make a selling point of it. Client confidentiality, that sort of thing.' A momentary hunted look crossed Bancroft's face. 'For some clients, in some cases, that would be a distinct advantage.'