A military veteran was incorrectly flagged as a sex offender while registering his daughter for school in Phoenix, Arizona, due to a flaw in an automated background check system. Jonathan Castillo visited Las Brisas Elementary School to enroll his daughter for the upcoming academic year. During his visit, school staff took his photograph, which he believed was for a visitor's badge.
An hour later, Castillo received a call from the school principal, Alicia Keelum, who informed him that he was barred from school grounds. According to Castillo, Keelum stated that his name and photo had been flagged by the system for a connection to a Wisconsin sex offender registry and that an investigation had been initiated. Castillo, who served as a combat medic, asserts that he has never been to Wisconsin and is not on any sex offender registry.
He subsequently sent a letter to Keelum and the district superintendent, Dr. Curtis Finch, demanding an explanation for the erroneous identification and seeking information about the vendor responsible for the background check. Castillo reported receiving an apology from the school the following day. School staff explained that the vendor flagged him due to similarities between his middle name, certain physical characteristics, and information on the Wisconsin sex offender registry.
Castillo expressed dissatisfaction with the school's response, calling for greater accountability in the background check process. He questioned whether a third-party computer or a human verified the information before barring him from school grounds and asked how such errors would be prevented in the future. Security specialists have noted that background checks can be unreliable, particularly if personal information is entered incorrectly. Private investigator Rich Robertson suggested that human error combined with flawed automated databases can lead to innocent individuals being wrongly accused.
The Deer Valley Unified School District, in a statement, confirmed that student safety is a top priority and that the Verkada Guest visitor management system has been implemented districtwide. This system screens visitors against publicly available sex offender registries during check-in. The district stated that visitors are notified their information will be screened before submitting identification and that the system does not access or verify Social Security numbers. The district acknowledged that a recent incident occurred where the system generated a potential match based on similarities between a parent's driver's license information and public registry data. Out of caution, the parent was asked to remain off campus while staff reviewed the alert. The matter was resolved within approximately one hour and 15 minutes, and the district contacted the parent to explain the situation, apologize, and update the system to prevent similar mistaken matches.