> My impression is that police don't usually face repercussions for inaccuracies or outright lying in court.
That's because it's a very difficult thing to prove. Bad memories and even completely false memories are real things.
Sure, but other court participants are given somewhat less grace for lying under oath.
That's why we need a greatly reduced standard of proof for officer misconduct, especially when it comes to consequences like just losing your job (as opposed to, e.g., jail time).