I was listening to my scanner today and heard ISP call Terre Haute PD to go to mutual aid 1, I didn't know that they had such a thing so I went to the database to find on Safe-T that there were many Mutual Aid Talk Groups, I was wondered what regions coved what areas... Of course I'm worried about the Terre Haute, Vigo County, West Central Indiana Area... Just wondered what the regions are what... I'm sure others are wondering the same thing....