● Not a lawyer ● But one of the most important documents, (if work related) will be the official accident report ! Do not allow his supervisor, to stand over, or demand you fill it out in HR office. He will need to show ,this injury was and is a part of his regular job duties....also It seems that accident report should be completed ASAP ! ALSO, HR is there to protect the company, Workers comp. To protect the injured worker. GOOD LUCK !