Thank you. Those are all worthy of study.
When a local police detective, a patrol officer from a different department, a retired FBI agent and myself put together security plans for the church we attended at the time that are now in use in several churches in the DFW area, the main thing we had to be concerned with was not an active shooter, but custodial interference/child abductions and ensuring our nursery/children's workers were never left alone with a child (for their own protection as well as the child's).
In the end, we trained and rehearsed for everything from parking lot vandalism to a lost child to an active shooter and everything in between.
