I bet you are right about fhem using nextals. I knew a man who worked for a trucking company that got rid of their shared business radios a while back as the only time they could get in touch with him was when he was in his truck. It is probably cheaper and easier to have accountability with a nextal. I used to work with them years ago and knew they had radiuos and used a code for radio calls. They do have animal abuse investigators who work closely with police and prosecuters, They are a non profit organization and receive no funds from the city or state and do a great job protecting dogs, cats, horses, and farm animals from abuse. Thanks to those that responded as you answered my question i'm sure.
I was at the west count (chesterfield valley) location yesterday but there was only one truck in the lot marked with their logo.
It had no antennas other than an am/fm radio antenna.
I do recall years ago that the trucks at the Maryland Heights location did have VHF whips on them but gosh, that was 20+ years ago!
I bet some of them still have radios though. They might use the states health department radios or maybe even licensed under one of the guys in charge in a given region being as they are non profit. I do get by the old maryland heights location once in a while so the next time I'm up that way, I'll drive around back and see what I can see if the office is still there even. I think it was more of an impound building for the strays they picked up from what little I can remember. I think it was off of Dorsett or Mckelvey. I can't remember for sure but I'd remember if I drive there.
It was east of 270 about a mile or three on a side street off of Dorsett I think. The building front could have been on Dorsett though but all access was from the rear. I had to go there a long time ago to pickup some rabies tags that had been ripped off our dogs collar and they had them at that location. I remember seeing many cages of stray animals they had pulled off the streets but that is about all I remember other than the VHF antennas. I used to pay attention to antennas back then so I could search out companies frequencies! I still do that today.