In the modern legal landscape, private surveillance systems have become as vital to criminal defense and prosecution as public infrastructure like Flock Safety LPR cameras. While public cameras provide high-level vehicle tracking, private systems—ranging from sophisticated business security to neighborhood doorbell cameras—offer localized, granular details that often serve as the “digital witness” in a courtroom.

Business Surveillance

Because businesses are frequent targets for both crime and civil litigation, their surveillance systems are often the most comprehensive and common sources of evidence:

• Deter and Solve Crime: Businesses use camera to discourage people from committing crimes (e.g., “smile you are being recorded) and solve crimes when committed by providing evidence to law enforcement.
• Retail and Workplace Monitoring: Businesses in Missouri are generally permitted to record in areas where there is no “reasonable expectation of privacy,” such as sales floors, lobbies, and parking lots.
• Strict Prohibitions: Even in a business setting, it is a criminal offense to record in private areas such as dressing rooms, bathrooms, or employee lactation rooms.

Neighborhood Surveillance

Residential systems, while often less sophisticated, fill the gaps in public surveillance nets by capturing movements near or within private property boundaries.

Individual Surveillance

• Property Protection: Homeowners have a right to monitor their own property (e.g., dedicated cameras, Ring doorbells, etc., including driveways, yards, and porches and even capture images off their property with some exceptions*

Missouri’s rules for recording: Video & Audio

For both businesses and citizens:

• Video recording:
  • Inside business and homes. Can record inside their property.
  • Outside business and home property. Can record their property.
  • Outside off property (such as a sidewalk or street). Can generally record if it is visible from a public vantage point (no expectation of privacy).
    • *Neighbor Privacy: Missouri law prohibits pointing residential cameras specifically into a neighbor’s home or fenced backyard where they have a justified expectation of privacy.
• Audio Recording:
  • Missouri is a one-party consent state for audio. At least one party to a conversation must consent to being recorded (which includes the person recording) if there is a reasonable expectation of privacy.
• Search Warrants: While business and individuals can voluntarily share footage with the police, state agencies generally cannot place their own surveillance on private property without landowner consent or a valid search warrant.