A Manhattan appellate court found that the city's speed camera program is legally sound in a decision that caps off an eight-year legal battle that sought to potentially invalidate millions of automatically issued tickets. A group of speeding ticket recipients argued that speed camera summons violate state traffic law on a technicality. Part of the citation on the tickets, called a notice of liability, fails to include a technician's certificate, which they argue, must be signed by a specialist employed by the city.