How Ottawa police are using Automatic Licence Plate Recognition

Our Take

The Ottawa Citizen's sit-down with Sgt. Rob Cairns is a useful watch precisely because of what it reveals by omission. An officer explaining ALPR to a general audience will naturally frame it as a narrow tool for catching stolen cars and suspended drivers. What rarely comes up in these department-approved explainers is the retention question: how long every scanned plate sits in a database, who can query it, and what happens to the movements of the overwhelming majority of drivers who were never suspected of anything.

This is the same script departments across North America use, and it works because it's not technically false. ALPR does catch stolen cars sometimes. But the technology's real function is building a searchable log of where cars go, and that log doesn't discriminate between a wanted felon and someone driving to a medical appointment, a protest, or a divorce attorney's office. Once that data exists, it gets subpoenaed, shared, and occasionally misused — problems that don't show up in a five-minute segment with a friendly sergeant.

Ottawa isn't unique, and neither is the messaging. If you want to see how far this infrastructure has spread closer to home, check our camera map, and if you'd rather push back than just watch, our take-action page has concrete steps.