Is Laser Jammers Legal in Missouri After the 2026 Law Changes?

No, laser jammers are illegal in Missouri under state statutes prohibiting devices designed to interfere with law enforcement or traffic control systems. The Missouri State Highway Patrol actively enforces these restrictions, and violations may result in misdemeanor charges with potential fines up to $1,000. Federal regulations further complicate interstate use, as the FCC classifies such devices as signal jammers without exception.

Key Regulations for Laser Jammers in Missouri

  • Statutory Prohibition: Missouri Revised Statutes § 304.024 explicitly bans the possession, sale, or use of laser jammers, classifying them as unauthorized interference devices.
  • Law Enforcement Enforcement: The Missouri State Highway Patrol conducts routine traffic stops targeting vehicles equipped with such devices, particularly in high-incidence areas like St. Louis and Kansas City.
  • Federal Overlap: While state law governs intrastate use, federal FCC regulations (47 CFR § 2.805) prohibit the manufacture, importation, or marketing of signal jammers, including laser jammers, nationwide.

Local jurisdictions may impose additional penalties, and courts have upheld convictions under these statutes. The Missouri Department of Public Safety has signaled increased scrutiny for 2026, aligning with national crackdowns on speed enforcement countermeasures. Owners of existing devices risk confiscation and criminal liability if discovered during traffic stops or vehicle inspections.