A DAT is an order to appear in criminal court on a specific date for an arraignment. It means you were arrested but released without having to wait in jail for a judge. Do not ignore it—a warrant will be issued for your arrest.

A proffer agreement allows you to provide information to the government with some assurance that your words won't be used against you in court, usually as part of plea negotiations. This is a high-risk strategy that should never be attempted without a criminal defense attorney.