If there is an investigation, then a complaint has been received by the BON that you may have violated the nursing law in your practice, drug/alcohol abuse, felony, etc. You can find violations of the Nurse Practice Act on the website. If the BON decides you have "done something wrong" that is a violation, you will have the opportunity to present your defense but beware you could have sanctions put on your license such as: Reprimand, probation, suspension or revocation. Do not ignor any communication from the BON. It would be to your benefit to consult an attorney who has experience negotiating with the Ohio BON. Consult the nursing associations if you do not know of any.