I have some family who are dispatchers (not in the US), and they have the ability to immediately get location data directly from providers if they think somebody is in imminent danger. They can’t do it to track a suspect (not without a warrant), but they would regularly do it for suspected suicides, or when a caller communicated they were in danger but failed to give their location for what ever reason.
I wouldn’t be surprised if many jurisdictions around the world had similar systems.