SWAT teams are situated in large cities, but some organisations (like the FBI) have similer teams.
SWAT is somewhat a police special forces, handling situations too dangerous for normal police officers. Such as multiple armed suspects, barricaded armed suspects, hostage situations, among others.
Side note: although the cops in america seem crooked, the police in england are polite, friendly, and helpful.
"10-1 but acknowledged"
Area located on the southwest side of Houston, Texas. Sharpstown Mall is located here as well as Johnny's jewelry shop. Rob G, Slim Thug, and Lil Keke came out with the song "Reppin My Block" which mentions the SWAT. Rob G is also part of a group called SWAT.
"In that SWAT nomtombout."
The S.W.A.T. are encouraged not to kill, if possible, and are only authorized to only return fire when either
a) Under fire
b) An innocent/teammate is in danger
However, there have been cases where they have overexcercised there right to kill.
To put it simply, just don't fuck with them.