What is the statute of limitations on slander?
“Statute of limitations” implies that using the court system will cure the problem. In order for slander to be cured by law, you have to prove damages. Damages, in the legal system, need to be quantified with dollars. If someone wrongfully caused you damages that can be quantified with dollars, then that is a crime that can be cured by the court through fines. You must weigh the costs and benefits of pursuing a cure in court. The system would rather not be burdened and will make it painful for you, in order to make it go away.
