http://www.texasshooting.com/TexasCHL_F ... sc&start=0
and short response time ( 3 min.) was given.
It seems like Mayors and Police Chief's etc... like to publish fast response times.
I know that there are probably many variables that affect this time. It seems to me the more variables, the less confidence I have in the their #s. Maybe if they backed it up with some more data.
I remain dubious about relying on such things for important matters.