Any person who‐
(1) shoots at a vessel of any kind which is in use by a customs officer while engaged in the execution of his duty as such officer; or
(2) shoots at, wounds, or causes any grievous harm to a customs officer while engaged in the execution of his duty in the prevention of smuggling, or any person acting in aid of a customs officer while so engaged,
is guilty of a felony and is liable to imprisonment for life.
Section 194 of the Criminal Code Act in Nigeria