The Brief A 100-foot tunnel entrance on a Shasta County property led CHP to a hidden bunker used for illegal cannabis and housing a large weapons cache. What we know:The investigation began in December 2025 after the CHP Northern Division Canine Unit received a tip regarding an illegal cannabis operation. Inside the bunker, officers recovered a staggering array of high-grade weapons:Three AR-15 style assault rifles (one with an obliterated serial number). Image 1 of 5 ▼ Photo courtesy California Highway Patrol (CHP) Northern Division. The combination of a hidden bunker and an alarming cache of illegal firearms and ammunition highlights the threat posed to public safety.