The USCCA has been doing a series of training videos lately using the StressVest product (
http://stressvest.com/products/system/weapon/) and even they have some pretty tight rules on firearms on the training floor. Anything that passes the line MUST be cleared by the RSOs and the bearer is marked with a armband if they are cleared. If anyone walks back across the line the armband is removed even if all they did was step across the line.
Even just stepping over the line and back does require a new verification so they are not playing around with safety in their training area.
Although I feel for the officer, there were poor choices were made and there is always a price for making a bad decision, in this case is was a woman's life. I have no doubt there will be repercussions in a lot of places over this, not just at that department.