There is a myth going around about how long a criminal record lasts for. Some say seven days and some say fifteen. The truth is Criminal Records last until the day you die. As harsh as this sounds it is reality. Once you are arrested, charged, convicted or aquitted of a criminal offense there will still be a record of this. There is no statute of limitations on how long a record can be kept for.
In order to have your record removed one must apply for a Pardon or Purge. Purges are required for charges for which did not result in a conviction. Any charges resulting in a conviction will require a Pardon.