Quote:
Originally Posted by LordVader
Depends on the agency and how long they want to keep the footage, which I am not privy to. I can only tell you from the IT perspective.
The misconception in the previous few comments is that "Oh just search CCTV footage can already".
Again taking the train example :
number of cameras a train x
number of hours / train x
number of train x
how many days of storage.
You can see how the number quickly scales up, exponentially.
This is not your home CCTV that you can store in a simple SD card with no backup and redundancy.
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We are not talking about your regular home use IP cam with SD card loop recording option. For a 6 channel CCTV system with dedicated DVR (with HDD backup) can easily store up to a month's recording footage.
So for the case of gov agencies CCTV setup, which most probably backup to server/cloud, we can easily say they track a windows frame of 3 months' footage which is easily recoverable.