A person who, without reasonable excuse, obstructs an officer of an enforcement authority who is acting in pursuance of duties imposed by virtue of this Chapter is guilty of an offence.

A person who, not being an authorised officer of an enforcement authority, purports to act as such in pursuance of section 284 or 285 is guilty of an offence.

A person guilty of an offence under this section is liable on summary conviction to a fine not exceeding level 5 on the standard scale.