In Conway v. County of Tuolumne, published November 24, 2014, the Fifth District Court of Appeal affirmed summary judgment in favor of the defendant county in a lawsuit for negligence and nuisance brought by a homeowner whose home was allegedly rendered uninhabitable by a sheriff's deputy's tear gas canisters. The plaintiff called deputies when the plaintiff's adult son, a felon forbidden to own firearms, fired a .357 magnum at the plaintiff's front door. The parties disputed whether the plaintiff gave deputies permission to search plaintiff's mobile home, or whether the plaintiff told deputies that he believed his son was still in the home. A SWAT team and a negotiation team attempted to contact the son in the house, with no response. The responding sergeant obtained permission from the SWAT team commander and the acting commander to throw two tear gas canisters into the home. The SWAT team then broke down the door and found no one inside. The son was arrested elsewhere. The trial court granted summary judgment based on Government Code section 820.2 immunity for discretionary acts.
The appellate court analyzed the history of applying section 820.2 to police officers' acts. Section 820.2 immunizes discretionary "policy" type acts, but not negligent ministerial acts done to carry out discretionary decisions. The court decided that acts performed in carrying out an arrest may be immunized under section 820.2, if they involve sufficient judgment and discretion. The decision to use tear gas on a suspect believed to be holed up in a building involves sufficient judgment to warrant discretionary immunity.