Martin Clark wrote:
> Ann wrote...
>> One or two folk have mentioned that cameras don't catch you head on,
>> only form behind and I am hoping that that is the case.
>
> It seems that the Truvelo type of camera does catch drivers head on,
> and so uses an infra-red flash, which you wouldn't see, so as not to
> dazzle the driver.
> www.speedcamerasuk.com/Truvelo.htm

Correct - which is why I specified "white flash" in my answer.
FWIW - you cannot detect Truvelo with a rader detector (since it uses a 
speed measurement buried in the road!)

Ron Jones
Process Safety & Development Specialist
Don't repeat history, unreported chemical lab/plant near misses at
http://www.crhf.org.uk Only two things are certain: The universe and
human stupidity; and I'm not certain about the universe. ~ Albert
Einstein 


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