I asked for a link to evidence that proves cycle helmets do not reduce head injuries. You are pulling that politician's trick of avoiding an uncomfortable answer by answering another question that was not asked in the first place.
You are the one guilty of that Nigel, in claiming that helmet compulsion has no downside and then avoiding the overwhelming evidence that it does have a very serious downside.
Introduce compulsion here and just watch the rate of cycling go into steep decline. For starters there's the 11,500 London hire bikes, heavily used by commuters coming in by rail from far away and then cycling the last mile or three to their workplace. Do you really think they'll buy a helmet, carry it from home, sit on the train for one to three hours clutching it just for a short use afterwards? Of course they won't, they'll just revert to what they did before the hire bikes existed. And the 60 t0 70% of cyclists who don't wear now will be those most commonly not bothering to cycle any more, as happened everywhere else compulsion was introduced.
That's why most of the countries who introduced compulsion have either rescinded or later severely restricted it, mostly for children only, though in odd cases for urban use only.
That's why our governments of both persuasions have steadfastly resisted all attempts at helmet law in Britain, even point blank refusing debating time for a measure to have children protected by a helmet law, knowing it was the thin edge of a wedge.
If you want to kill cycling Nigel, get compulsion introduced. The car drivers, indeed all motor vehicle drivers will love you for it since they all hate cyclists either silently or occasionally noisily, because bicycles hold them up and get in their way. And of course in killing cycling you'll do wonders for obesity and public ill health.
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