Operational guidelines, policies and specific response plans developed, adopted, or maintained by any public agency responsible for law enforcement, public safety, first response, or public health for use in responding to or preventing any critical incident which is or appears to be terrorist in nature and which has the potential to endanger individual or public safety or health [RSMO 610.021(18) 1994]; and Existing or proposed security systems and structural plans of real property owned or leased by a public governmental body, and information that is voluntarily submitted by a nonpublic entity owning or operating an infrastructure to any public governmental body for use by that body to devise plans for protection of that infrastructure, the public discourse of which would threaten public safety [RSMO 610.021(19) 1994].