8.4 Assault on Federal Officer or Employee [With a Deadly or Dangerous Weapon] is a federal crime that involves using a deadly or dangerous weapon to commit an assault on a federal officer or employee. This crime carries serious penalties and is typically charged as a felony. Types of 8.4 Assault on Federal Officer or Employee [With a Deadly or Dangerous Weapon] include physical attacks such as punching, kicking, strangling, or using a weapon such as a gun, knife, or blunt object. In some cases, sending a threatening letter or email can also constitute a form of 8.4 Assault on Federal Officer or Employee [With a Deadly or Dangerous Weapon]. If convicted, a person can face up to 20 years in prison, a fine, or both.