I noticed that the time of documentation was changed on two of my nurses notes. The same person documented under my note each time. I report this to my Manager who took it to H.R. When the person was confronted by H.R. they denied doing it. H.R. said that she denied doing it and they have no proof so there is nothing they can do. This person has not spoken to since this happened. Is there something else I can do about this or do I just let it go? I'm still upset about the whole issue. Any thoughts or comments?