Here's a link to UCR (Uniform Crime Report) showing the number of officers killed by firearms. They don't specifically list "assault weapons", but you can sort of guess that this would include 9mm (with more than 10 rounds), .223, 7.62X39, and possibly .308.
If you look at those categories on page 37 of the UCR (page 43 in the Acrobat reader), you can see that the AWB of 94 had no effect on these numbers. They vary all over the place. Also notice that less than 20% of cops are killed with a rifle of any type, while handguns amount to around 66%, using rough numbers. The Brady Bunch and the VPC are blowing smoke up the public kiester when they say the AWB has improved the situation for law enforcement.
http://www.fbi.gov/ucr/killed/02leoka.pdf
If you look at those categories on page 37 of the UCR (page 43 in the Acrobat reader), you can see that the AWB of 94 had no effect on these numbers. They vary all over the place. Also notice that less than 20% of cops are killed with a rifle of any type, while handguns amount to around 66%, using rough numbers. The Brady Bunch and the VPC are blowing smoke up the public kiester when they say the AWB has improved the situation for law enforcement.
http://www.fbi.gov/ucr/killed/02leoka.pdf