It's a bit delusional to not realise a company's HR dept's first priority is protect the management from employees . Yes if you are being victimised by a management individual HR will assist you to some degree to protect the greater good of the company . I've supervised in large company's for more years than I care to remember and have seen it many times where HR sympathise with a disgruntled employee , then in the next breath behind closed doors tell the manager how to protect themselves from that person and give them tools to enable them to dismiss them once enough evidence has been gathered . Every situation is different and that's just a general overview . It's like a safety dept . There first priority is not the safety of the employees ...it's to keep the Manager out of court if someone dies on the job. Trust no one .