Advantages:
Quick
Effective
Useful Para-military Tactics
Disadvantages:
Expensive
Unwanted deaths (mistakes can happen)
http://en.wikipedia.org/wiki/SWAT
http://www.nasta.ws/
http://www.specialoperations.com/Domest ... index.html
Compare the SWAT to several other teams, that should help you detirmine the benefits of SWAT.
Also, e-mail some of the commanders of the unit of different cities; getting information from them is more than useful.
Here is one:
Bart.Hulsey@gwinnettcounty.com (Gwinnet County, GA)
Use articles too, find any that have to do with a SWAT team:
http://news.google.com/news?hl=en&lr=&t ... earch+News