Statutes of limitations (SOL) are a predetermined period that the state is allowed to charge someone with a crime. Different crimes have different extended periods of time when one can file charges against someone. However, the same crime may have a different SOL depending on the state. There are SOL laws because of concerns that witness testimony might be unreliable. A victim may not necessarily remember enough about their abuse that the jury may not find them credible. Physical evidence may also deteriorate over time, which further questions credibility.