Scottsdale, AZ – A Missouri Circuit Court judge has rejected a lawsuit challenging the use of red-light safety cameras in Arnold, the first city to install the road safety camera devices in the state.

The ruling by 23rd Judicial Circuit Court Judge Mark T. Stoll on Aug. 29 upheld a request by the city of Arnold and American Traffic Solutions to dismiss the 70-page class-action lawsuit filed earlier this year. Among its claims, the lawsuit argued the city’s red-light camera ordinance is invalid because it conflicts with state law.

In his order, Judge Stoll prevents the plaintiffs from bringing their case before the court again and ordered them to pay defendants costs. The judge wrote, “This court reviewed the extensive research, including recent appellate and trial court decisions examining the issued raised in the amended petition and the motions. . . . The court finds the arguments set out in the defendants’ motion are the most persuasive and, accordingly, the motion should be granted.”

The decision marks the fourth class-action lawsuit challenging cities red-light safety camera ordinances filed by the same St. Louis law firm to fail in 2012. Judge Stoll’s ruling is consistent with five other recent rulings including the Missouri Court of Appeals’ ruling that upheld the Creve Coeur red-light safety camera ordinance (see, Nottebrok v. City of Creve Coeur, Missouri, et al., 2011), and with St. Louis County and Kansas City Circuit Court judges’ decisions involving similar lawsuits against Creve Coeur,Florissant and Kansas City (see Ballard, et all. v. City of Creve Coeur, Missouri, et al., Unverferth, et al. v. City of Florissant, Missouri, et al. and Damon, et al. v. Kansas City, Missouri, et al., 2012). In 2009, a federal judge found the city of Arnold’s red-light safety camera ordinance to be both legal and constitutional (see Kilper et al. v. City of Arnold, Missouri, et al., 2009).

About American Traffic Solutions:

ATS is proud to be the market leader in road safety camera installations in North America. ATS has more than 3,000 installed red-light and speed safety cameras serving more than 30 million people. ATS has contracts in nearly 300 communities in 21 states and Washington, D.C., including: St. Louis, Kansas City and more than two dozen other Missouri cities. For more information, please visit: or  To view video that serves as a chilling reminder of the dangers that red-light runners present to our family and children; visit ATS on YouTube here: