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Why camera map counts differ from police totals

Compare Flock and other plate reader counts by device type, boundary, owner and date before treating a map as an agency inventory.

Guide reviewed .

Start with the unit being counted

Check whether a number counts source points, cameras, reader systems or launch facilities. Those are different units. Cincinnati's October 2026 presentation lists plate readers, city video, body and vehicle video, and drones separately. Keep those categories separate when comparing an agency total with mapped plate readers. Source.

Check the geographic boundary

A city name may refer to a municipality, a statistical place, a mailing area or a wider urban community. Census designated places are statistical areas, not incorporated municipal governments. Incorporated places can extend across county lines. A consolidated government's balance excludes separately incorporated places within it. Matching names therefore do not guarantee matching areas. Source.

Separate location from ownership

A point inside a county does not establish that its police department owns it. Gwinnett County's FAQ distinguishes department-owned readers from the wider county total across other owners. This site's agency pages and geographic map counts preserve that distinction. A nearby police station, a county label or an agency link is not an ownership record for every point. Source.

A shared system is not two inventories

When a record describes one jointly supported system, keep its total separate from each participant's inventory. Garrard County's January 2025 minutes illustrate this distinction. A cost share does not allocate particular devices or establish database access. Add systems only after checking that they are distinct. Source.

A shared account count is not a current device inventory

The historical Pittsboro public-record copy lists an Adairville KY PD account with two cameras on page 2. The same row shows access and permission labels. Those labels describe that view of a shared account; they do not identify two current LPRs, camera coordinates, reciprocal permissions or completed searches. Keep the record contributor's September 2025 collection description separate from the platform's later creation and update dates. Source.

Read the date beside each claim

A source snapshot, an agency-reported inventory date and the date a document was checked answer different questions. Checking a page does not establish that every listed device is operating. Some public pages do not date their equipment total. Those missing dates remain unknown. Compare dated records and preserve an older count's historical scope when a newer source is unavailable.

Understand what this site counts

City and place guides count Flock-tagged and other plate-reader source points within 2024 Census place polygons. County guides use the shared county outlines. Corridor guides count eligible camera records near specified road lines and separate camera types. Those boundaries and units can produce different totals. Mapped coordinates and source links remain the starting evidence; an agency-wide equipment count is never converted into invented locations. Points on a place boundary are excluded because they do not establish which side contains the source location; ambiguous overlaps are excluded as well.

Use counts as a way to inspect sources

Open a location's original record, then compare the agency document, geography and dates. Missing points, removed devices, duplicated reporting and mapping errors are possible. A low mapped count does not establish low surveillance, and a high count does not measure how many vehicles were recorded. These public maps do not contain a person's plate sightings or travel history.

Questions and answers

Must one of two different totals be wrong?

No. Both may describe different areas, dates, owners or equipment. An error is also possible, so compare the underlying source and scope rather than choosing the larger number.

Does an agency link identify the owner of a nearby camera?

No. Agency links provide relevant policy records. Ownership requires its own evidence; geographic proximity alone does not establish it.

Can city totals be added to get a county inventory?

Not reliably. Statistical and municipal boundaries, county relationships and unincorporated areas differ. Use the separately scoped county guide and inspect its method.

Does shared funding prove shared database access?

No. Funding arrangements, equipment ownership and user permissions need their own evidence. Do not turn a cost split into a data-sharing partner list.

Does a shared network label establish current camera ownership?

No. A historical account label, a permission setting, a device type, ownership and present operation are separate findings. The Adairville record preserves a generic two-camera label without turning them into an explicit LPR count or mapped locations.

Sources

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