It is the retired officer's responsibility to have proper credentials. If an officer is not legally able to carry a firearm under LEOSA, then it's his or her problem to deal with.
Here are some record-keeping considerations.
First, do not record the score the retired officers fired. All that is important is that the
retired officers
passed the qualification. You, the firearms instructor, administered a test, the retired officers passed, and you reflect that by issuing that retired officer a qualification card. Now, many will be thinking, "How will you prove the retired officer passed the qualification?" Simple: you gave him or her a qualification card. After all, do you have your DMV driver's test score, or is your driver's license proof you passed the drivers' test? Have a Pass/Fail scoring system on the appropriate "active duty course of fire" for off-duty or back-up guns.
Second, do not record the firearm the retired officer qualified with. It is not required by the law to carry the firearm you qualified with. The law requires that it be the same "type" of firearm (remember, rifle, handgun or shotgun), not the same one. So, why record anything but the fact it was a handgun, rifle, or a shotgun. Additionally, if the retired officers are not carrying the gun they qualified with, what can you do about it? They do not work for you anymore, so you can't punish them.
I would have a simple application where the retired officers affirm by signature that they meet the requirements to carry a firearm under LEOSA and reside in the state or are qualifying with the agency they retired from.
When it comes to LEOSA
, keep it simple. Don't create liability by doing more than is required.