I spent some time helping one officer that was struggling to qualify, even loaded 500 rounds and gave them to him when we practiced. He finally had an ah ha moment and listened to my suggestion of loosening his grip to firm instead of crushing the grip. Qualified easily next five years before he changed jobs.Because most cops treat the gun the same as a ballpoint pen. It is a tool they have to carry and may have to use.
As a retired cop and a friend to many that were on the department when I lived in MA, I offered to take any officer to my gun club as a guest and let them practice. I made this offer numerous times to numerous officers. Nobody ever took me up on it and one told me that only if the chief authorized it as OT and provided ammo. My former department only qualified once/year and they only shot 100 rds each year. Cost of ammo and OT dropped the prior 2x/year qualifications that we used to do many years ago.