Under section 21-C(1) of the Anti-Terrorism Act, 1997, an individual is guilty of an offence if they offer instruction or training in the creation or use of which of the following without proper authorization from the relevant authority?

Explanation

Section 21-C(1) prohibits providing training or instructions related to firearms, explosives, chemical, biological, and other types of weapons without official permission. Therefore, all the listed categories fall under this offence.