<P> Headlight flashing in India is often used as a signal that the driver flashing you is offering to let you go first . Such use is however strongly discouraged because it can lead to accidents where the driver flashing has not seen the approach of another road user . It is also used to indicate to an oncoming vehicle to either stop or give way in narrow lanes . </P> <P> On some occasions, motorists who flashed their headlights to warn of police activity have unwittingly helped fugitives evade police . In 2008, one of Jamaica's most wanted men went around police checkpoints which had been set up on his most likely routes after a driver had flashed his headlights to warn of police ahead . Drivers were warned that flashing headlights may result in "unwittingly facilitating criminal activity". </P> <P> Though not all of its rules represent law, the Highway Code states "Only flash your headlights to let other road users know that you are there . Do not flash your headlights in an attempt to intimidate other road users". Drivers warning others about speed traps have been fined in the past for "misuse of headlights". </P> <P> Headlight flashing in the United Kingdom is often used as a signal that the driver flashing you is offering to let you go first . Such use is however strongly discouraged because it can lead to accidents where the driver flashing has not seen the approach of another road user . Using it to indicate that you are coming through and the other driver must wait, could lead to an accident . </P>

Is it illegal to warn drivers of a speed trap uk
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