Police departments across the US are using school district security cameras to support immigration enforcement, an investigation by the 74 reveals. These cameras, installed by Flock Safety, an Atlanta-based surveillance company, capture license plate numbers and other data. The data is uploaded to a national database accessible to law enforcement agencies. Records from Texas school districts show police have made hundreds of thousands of searches on these cameras for immigration-related investigations. At the Alvin Independent School District near Houston, more than 3,100 police agencies conducted over 733,000 searches in a month, with 30 agencies citing immigration reasons 620 times. Some searches assist federal agencies like ICE and Customs and Border Protection. School districts use these cameras to monitor campus safety for crimes such as vandalism and speeding but are unaware their data is used by other agencies for immigration enforcement. Several law enforcement leaders admit their searches support the Department of Homeland Security's immigration crackdown under Donald Trump's administration. This practice raises privacy questions, as school surveillance meant to protect students is also tracking immigrant families. "This just really underscores how far-reaching these systems can be," said Phil Neff from the University of Washington Center for Human Rights. Flock Safety says it does not give DHS direct access; all data sharing is decided by local customers. However, police departments routinely share access, sometimes allowing federal agents to run investigations through local officers. Immigration-related searches often outnumber those for other crimes. Some agencies participating in the federal 287(g) program, which allows local officers to enforce immigration laws, are heavy users of this data. School and local authorities have yet to comment fully, while privacy advocates warn this large-scale surveillance risks violating student privacy protections. The 74’s investigation sheds light on how school security technology is quietly fueling immigration enforcement efforts nationwide.