SATIRE. Fiction. Not a real news story. No real town, agency, official or contract is described below, and no quote here was said by anyone.
The second camera watches the first camera. The first camera, per the imaginary vendor documentation, does not know this, because it is a camera.
An entirely invented spokesperson for an entirely invented department explained that the oversight camera exists to ensure the original camera is used responsibly, and that a third camera has been budgeted in case the second one develops opinions.
The joke, as usual, is standing very close to something real: oversight of a surveillance system generally means more logging, not less surveillance, and the audit trail is often produced by the same company that produced the thing being audited.
If you'd like the unfunny version, we keep the actual paperwork in the Flock Files.