It's interesting you put it that way. I've been on the MSP STOP team for a while and I've never seen "us" take away control from a requesting town or chief. In fact I remember one incident where the team wanted things to go one way but the local chief knew the subject and didn't think it would benefit the situation. The chief was right and the incident ended very well.
The STOP team has been around since 1971 responding to thousands of calls during that time all over the state. They are prepared for barricaded subjects, hostage situations, high risk warrant service, wooded searches for armed suspects, VIP/Dignitary protection and armed emotionally disturbed persons just to highlight a few. They often are able to use and utilize the Hostage Negotiation team, K-9 support, and Airwing. The STOP team trains four days a monthor more to keep their skills sharp. Training is an ongoing process for the STOP Team. Team members attend seminars and training events nationwide, often returning to provide the instruction to the remaining team officers. Members are certified in many tactical policing disciplines such as firearms instruction, breaching, entry, rappelling, use of distraction and less-lethal devices and entry into hazardous environments such as clandestine laboratories. Each Trooper carries his gear in his cruiser for quick response times.
Any town can get these assets with a phone call and does not have to pay for it. Yes, that is a common misconception that if you call for the STOP team, the town will get billed for the service. That does not happen. Another misconception is that once the STOP team arrives they take full control of everything and the local Chief and his officers have no say in what happens. This too is not true. The STOP commander will work with the local department to effectively resolve the issue at hand, often utilizing local intelligence and resources. Still another misconception of the STOP team is that it will take hours for them to arrive on scene and a local team can get their much quicker. Once again that is not true. In fact 12 of the 33 team members live in Worcester County. Five in Worcester or a bordering town.
As a State Trooper and a member of the STOP team I am assuring you that Worcester County would have no trouble getting 12-13 members in a town and ready for an incident within 15-20 minutes. The Worcester area has probably the fastest response time for a large portion of the team than any other part of the state. We train more than any other team like us in New England and we respond in fully marked cruisers with our gear. Not only does it not cost the town anything to have us respond but we also remove the liability from the town.
Fortuneatly for me the town I live in doesn't belong to CMLEC. I'd be pretty pissed knowing I was paying for services we already got for nothing. Kind of like the old cliche, "Why buy the cow when you can get the milk for free?"