Here in Marion County, most of the public School LEO's have a MESA radio in addition to thier own school radios. The school admin etc do NOT have MESA radios, only the SRO/SPD's do. There is only one school system that is on the MESA family of systems full time, that being Wayne Township using System 2. The WT Schools PD does have access to System 1 to talk to IMPD, while none of the other staff have access to S1. And of course IPS PD is full time users of MESA S1, whilst IPS ops are not on MESA at all. As far as I know, none of the "parochial" schools or private schools have MESA access. The public school LEO's can also access SAFE-T, but as far as I know only use the SWMA's and the RMA's, or Zone Event's for special event type things, and extremely rarely. (ALL MESA Public Safety radios have SAFE-T also.) In Arkansas, some school systems are on the AWIN, and a former governor of Mississippi had put a plan in motion for every public school statewide to have access to MSWIN, though I am not sure how far along that plan has grown. Just to the north, in Hamilton County, all the public schools SRO/SPD's have MESA System 3 access, and this was expanded after a school shooting event not too long ago, though of course now, all LE on S3 is full time E.