I have no wish to be alarmist, and this may turn out to be another candidate for Snopes, however the source is not your usual 'e-mail' warning.
My wife works for the local council and has just been issued with a 'Core Team Brief'
breifing team: Chief Executive/Corporate Directors/Clinical Directors/Directorate Managers
It reads as follows.
Security
Warning - We have received a warning from the London Ambulance Service of activities in their area.
Whilst the below behaviour is not commonplace in our area I have spoken to Gtr Manchester Police and their risk assessment of the action is to circulate it as a 'potential'
The London Ambulance Service have units closely associated with the London police based in South London who are basically fighting gang crimes. The 'street gangs' in London (particularly South London at present but it is sure to spread) have initiation tasks which new gang members have to carry out to be admitted to the 'gang'. The latest craze is to drive around, deliberately with no lights on their cars. The first person who 'flashes' them, points at them or sounds their horn at them, has to be followed by that new gang member in their car, who then has to fire a shot into that vehicle with no regard as to who is inside.
Our official instruction is that if we see a vehicle with on lights on, we are NOT to 'flash' it etc, and the advice to friends and family is that you should ignore any vehicles you see without lights. I would ask that you pass this info onto all your family, friends and colleagues and who knows, it may save someones life.
Trust Security Manager
Name witheld by me.
This has been copied verbatim from the letter my wife has just shown me.
Now this may be a hoax, but I would rather pass on this info and it turn out to be a hoax, than do nothing, only to find out that some idiots are really stupid enough to do this.
If it is a hoax then I apologise in advance.