I am not presently a Police officer, just waiting for my drug screen an uniform fitting and the golden ticket start date.
Here are some of the things i see looking from the outside in.
No 1. The budget is being cut on a daily basis. So this would cut out all officers being firearms trained due to the purchase of all the extra kit and equipment, weapons, personal kit, vehicles with gun safes etc etc, the extra manpower/ overtime required to backfill shifts with guys/ gals away on continuation training (i assume you have to complete qualification shoots and also check zero your weapons on a regular basis).
No 2. Not all will wish to be armed and in my experience some people should not be trusted with a plastic knife let alone a firearm, this has been voiced by others in the forum and is not meant as a slight towards any particular individual. Some people have the aptitude for it some dont.
No 3. As commented on somewhere in this discussion thread having weapons distributed around Police stations in gun safes is a drama, Reason, if you were to do this it should not be possible for 1 person only to open this safe, as pointed out above, in the past when weapons were stored in safes a senior officer flipped out and let himself into the safe and used the weapon to commit murder. You will need 2x key holders, 9 times out of 10 when trouble arrives, someone happens to be somewhere else with 1 off the keys. Also i assume your weapons are assigned to you as personal weapons, therefore these are then zeroed to that person. So you couldnt just rock up to a weapons holding station and grab a weapon. Also as has been mentioned the added cost of maintainance SEE POINT 1.
I havent conducted any research regarding % increase in incidents requiring support from firearms units, but from what i have read within these forums it is on the increase. Therefore there will be a greater requirement of support from armed response units in the future, as per the norm it will take a serious incident such has just happened with Moat to bring this to the fore or heaven forbid a Police officer responding to an incident being killed for it to become a serious enough incident to warrant a Govt enquiry and for someone to say hey perhaps we need more guys carrying weapons.
My personal opinion is you cannot enforce carrying a firearm onto someone, they need to want to do this, as the responsibilty of this is enormous, they must obviously then undergo the training that this responsibilty requires.
I am not familiar with what kit and equipment an AR team carries as standard kit as in weapons, i assume pistol and some form of long is carried within the vehicle such as an MP5 or G36.
As for people bitching about it being uncomfortable having a pistol in a holster attached to them, trust me you get used to it, try adding 55lb of level 4 body armour 14 rifle mags, an M4 strapped to you, fire retardant flight suits, boots, gloves and a helmet and 18 hour shifts (sorry rant over)
As for retention of weapon when rolling around on the floor, there are many holster which have operator friendly locking mechanisms which defeat someone trying to pull your pistol from the holster.
So in summary, whether people like it or not it has to be a natural progression of growing the firearms teams to match the increase in incidents, obviously the bean counters will not want to spend the money, so while we are battling for funds to grow the teams it will be the responsibility of i assume the shift commanders to make best use the resource they have, by making sure the teams are strategically positioned around the AO (area of operation, sorry dont know what you call in it the Police)to try and give the shortest possible response time to incidents. Which im sure already happens (i obviously have no insight in to how the teams are controlled), not trying to teach granny how to suck eggs.