I work in Maryland, USA and have been working with a company for almost 10 years. For about the last 3 of them, I've been warned about, a newly hired regional manager that had eyes on me by my direct manager. Never mentioning anything about my issues with said individual myself. Since then, I've been even more careful about documenting my work, just in case the day would come when I would need to defend my integrity and my job. I've fended of harassment and accusations ever since. And in good faith (more like desperate hope) that the professionalism and understanding of the way my job works, I just kept my position on things and hoped we could come to some mutual ground.
Fast forward to today, under a new direct manager, that day has come. I have been presented with documentation on my "lack of performance" noting wild and untrue accusations. Thankfully, I have documentation that disproves it. But I can't help but feel that even though I work for a well established company, I have few people in my corner willing to even at least mediate this issue fairly, simply because this has gone on for so long and nothing has been done about it before.
Is it safe to go to HR about this? I don't know for sure, but it feels like I'm not very significant on the food-chain if this abusive behavior goes 2 levels up and is ignored.