I was offered prescription drugs by a colleague (who is on prescription drugs) at work over 45 days ago. This colleague has engaged in other harassing behavior towards me recently. I work in a government system / office. I would like to report this offense to my admin. (along with a few other harassing behaviors from this person) however, I recently heard that I can report such offenses within 30 days of not getting myself in trouble but after 30 days I may risk getting into trouble for not telling about this offense earlier. Can I report this to my supervisors w/o getting myself into trouble, or is it too late?