Conn. Agencies Regs. § 29-349-143
When any explosive has deteriorated to an extent that it is in an unstable or dangerous condition, or if nitroglycerin leaks from any explosive or if any explosive is unfit for use for any reason, or when any blasting caps, electric blasting caps, delay electric blasting caps, electric squibs and delay electric squib have so deteriorated from age, improper storage or are unfit for use for any other reason, then the person in possession of such explosive or device shall immediately report the fact to the Local Fire Marshal, and upon his authorization shall proceed to destroy such explosive or device in accordance with safe practices. Only competent persons shall do the work destroying these materials. Any manufacturer, distributor, wholesaler, dealer or user of explosives who files a description of his manner of destruction of these materials with the State Fire Marshal for approval may destroy these materials without authorization of the Local Fire Marshal.
Conn. Agencies Regs. § 29-349-143