Some fair points, Edders but, for a start, you occasionally use the phrase 'pirate hire' for no obvious reason, which to my mind displays at least a degree of unwarranted prejudice. And let's not mention that time you referred to 'lower tier' drivers
But that's the context in which I read your thread title, and to that extent saw it as an excuse for having a gratuitous go at the private hire side
Anyway, as regards the technicalities, the point is surely that we don't really know much about the circumstances and evidence, thus saying it was about an 'illegal HC' would be unwarranted, thus your 'illegal PH' is similarly being too presumptuous. To that extent the report was probably right to use the term 'taxi' in the generic, everyday sense. Personally, I'd have used something like this as the thread title...
Suspected illegal 'taxi' stopped on M6 near Preston...the 'scare quotes' round 'taxi' of course implying that it's maybe not wholly accurate, but it's a slightly vague term because we don't know precisely what it is.
And, I mean, the fake drivers that we often read about plying for hire around nightclubs and city centres normally don't have a rooflight nor meter, but would it be accurate to call them 'illegal PH'? And would that differ if the legitimate HCs were purpose built or saloons? In my opinion, no. If anything they'd be a fake/illegal *HC*, but again maybe 'taxi' is more appropriate because it's all a bit unclear.
And supposing you're right - and on balance I'd guess the vehicle in the article was doing some kind of pre-booked work - but the suspect had only been caught when taking a job off the street. Would that mean he'd suddenly changed from being an 'illegal PH' to an 'illegal HC'?
Again, that's debatable either way, but again without the full details it's probably better not to be to specific, in my opinion at least
As for your final point, I might manage to summon up a bit of effort over the weekend. I'll be out for a few hours tonight, and a couple of hours after midnight Sunday, but apart from that I'll have plenty spare time
(Last Saturday I waited well over two hours (straddling midnight) for a local run, and can't really see it being much better tonight. Hogmanay is dead as a dodo here (for street cars like me in particular), and I normally don't even go out till around midnight, and it's all done and dusted by about 2am

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