San Diego police arrested Hugo Parra based on a false positive from the Flock license plate reader system. Despite being five miles from the crime scene, Parra spent nearly a month in jail before charges were dropped.

The city has a $7 million contract with Flock Systems for surveillance technology. Parra's attorney argues that "mass surveillance without any sense of skepticism is a recipe for disaster" following the wrongful arrest based on flawed data.

Now Parra and his friend are preparing to sue the city for civil rights violations. The case highlights how surveillance systems can misread data, potentially leading to false arrests even when physical evidence contradicts the technology's findings.