> The images were deleted the moment they were uploaded.
???
> VIII. Records of number plates read by each LPR shall not be recorded or transmitted anywhere and shall be purged from the system within 3 minutes of their capture [...]
But you're saying that these non-hit image captures were uploaded somewhere?
- Camera takes picture
- Camera pre-checks the picture for quality and that there's something on there that they want
- Camera uploads picture to flock servers
- Camera deletes picture locally
- Rinse and repeat
I could actually see this being done by three jobs in parallel.
If there are a lot of images found on the camera then that's probably because the upload wasn't able to keep up with the amount of data that was created or they have a buffer of a few days or there's a cronjob that deletes these files every now and then...
Unless they actually use the camera also as the storage, which would be really stupid, but sometimes people to stupid things.