yes someone who looks like me
actually i've been stopped quite a few times over the years whilst using a-frames (illegally) both by the police and VOSA and never had one word said about it.
However I also know someone who was stopped towing an uninsured car with one who got six points and a £200 fine for no insurance!
I suspect the main factor is that a few of the police and VOSA etc are not quite up on their a-frame laws therefore it usually gets overlooked as long as your tow car is legal etc.
The last three times i've been stopped was to check I had towing entitlement, once they saw on my license I had they never bothered with anything else.
So yes its illegal but i think you'd need to be really unlucky to get done for it unless something goes wrong.
If you have an accident whilst using one you are in the poo!
I've towed Scorpios and vans with one and to be honest i don't find any problem with them at all.
The only time i'd say i've felt it slightly unsafe was whilst towing a suzuki with a Sierra, the Sierra is only 1200Kgs and I could feel the Suzuki trying to shove it on when braking or slowing down.
