There's a pretty big CCTV unit hanging above the car park which they can use as video evidence. It shouldn't need a 'witness' if it's caught on camera - the cctv footage would be much more reliable anyway. We should be able to report it to Lewisham, they review the cctv, police bring a conviction. Otherwise why bother with the CCTV: for parking enforcement only? That would be frustrating.

Obviously if it's your neighbour then it's a different matter. That's a little bit more of a sticky situation.