is it a good case for defamation?

Based on that limited amount of information, I can tell you that you have a potential case for defamation, but you should really consult an attorney if you want a more definitive answer.  The elements of defamation are laid out here. In short, you may have a viable claim if your employer is telling others falsely that your license is suspended and/or that you are being investigated by the police.  If the statements were made in a privileged context, however, you may need to show malice or other grounds for loss of the privilege.NOTE: This communication is not intended as and should not be interpreted as legal advice. Rather, it is intended solely as a general discussion of legal principles. You should not rely on or take action based on this communication without first presenting ALL relevant details to a competent attorney in your jurisdiction and then receiving the attorney's individualized advice for you. This post does not create any attorney-client relationship and is not protected by the attorney-client privilege.