The statistic that the average police officer hits his target, in a running gun fight, only one time out of every six shots seems to be confirmed by the observation of several here?
Hmmm... I'd say even that is being very generous!
I'm continually amazed, for years & years, where police fire maybe 50-60 rounds and perp catches maybe 3 or 4? That's mostly 'City Police' from what I've seen, which can translate directly into limited funds available. From there it devolves to officers only running out for some paper punching according to minimum requirements.
I'd like to see paper shooting completely done away with for LEO's with no exceptions. It's similar to a Master Mechanic having to practice tire changing proficiency once every 3 months: WHY? when they are NEVER going to change a tire on the job for the rest of their lives?
All LEO 'Qualifying' should only be under dynamic conditions, like from barricades, running a gauntlet, return live-fire simulation etc. Whatever 'practice' they can come up with that more closely resembles real world conditions will drive in new and more appropriate shooting skills. Oughta be a law 
In a perfect world with unlimited time and funding. Unfortunately people (Police authorities and the citizens who pay the taxes to support the authority) are not interested in paying the vast amount of money needed to:
a) Set up such a qualification test
b) Hire and train people suitable to administer such a testing regimen
3) Hire and train officers who are able to benefit from such a training regimen
4) Pay the infrastructure and ammunition costs needed to run such a training scheme on a regualr basis
5) pay the vast overtime bills to cover the officers running the training and covering those undergoing the training.
They are not interested in how many officers are at some super tactical training course because voters can't see them, but only how many they have on the streets writing tickets and patrolling.
Before anyone tells me cutbacks on training are a false economy, since one shooting will cost a municipality millions, that is what liability insurance is for, and the premium is cheaper than the training cost.