So you have a government job? You are happy? You have friends who work with you and you are all devoted to serving the public? And you and your friends wonder why there are websites like www.truthradio.com?
Good questions. Glad you are concerned. The answer is simple. It won't take long to read.
Your bosses dodge accountability. They have a bad habit.
They tend to lie.
They define "thorough investigation" as a process requiring the cover-up of the mis-deeds in their department.
Realistic people have no problem with mistakes. We all make mistakes. When we are caught speeding, we hang our heads. But we expect to pay the fine.
In general, that is not true of your bosses. What will you do about it? Nothing? Afraid of losing your job?