The ACLU warns that automated license-plate data and AI analysis are being used not only to investigate crimes but to generate suspicion from travel patterns. In Grace Knowles’ newly published account, an officer who stopped her during a 2025 trip said her route had been flagged as suspicious and showed a map linked to photographs of her plate. This case rests on her account and does not establish identical practices across all police agencies. Systems linking vehicle locations and times over long periods raise questions about false matches, misuse and the standards required before stopping someone.