[ubernostrum]

Many jurisdictions that use them now have the camera record at least three things:

1. A video of the car committing the infraction

2. A photograph of the car's license plate

3. A photograph aimed at the driver's seat, capturing the face of the driver of the car

While you can try to argue the photo of the driver is too blurry or unclear to serve as evidence, it's not as simple as saying "wasn't me". Also, even if you manage it, it's not enough to just say "wasn't me" -- you also will need to provide the name of the person you allege was driving.