This is a communication I have just received and from a reliable source. Apologies if you already know.... I'm not very up on cameras and the different types so I guess someone on here may enlighten us or provide more detai..... "As of Saturday, 1st April 2006 the new digital automated tracking system between junctions 3 and 7b on the M42 is scheduled to go live. There are 276 digital cameras which have been set to 2 MPH tolerance. You will not see any flash. The first you will know when you have been caught is the day the postman delivers the £60 fine. Be careful out there."