The Police in UK want an easy catch, like motorists, they dont want to work hard to find a criminal,
i used to be sub contracted to the forensics lab, spending time dragging in crime related vehicles, some with stolen goods or illegal firearms in,
but there is one time i thought things got silly, i was off-duty in my car, i got a speeding ticket, they had what we call a 'hair dryer' radar gun,
i was clocked doing 32mph in a 30mph limit, while i was there, 1 officer put the hair dryer on what we called a 'pop-pop' moped,
its a very small engine bike with peddles to assist it up hills etc, you peddle like mad before it dies,
well the moped was on a hill, i looked at the officers readout, the moped was clocked doing 18mph, why bother?