A bow is classed as a Controlled Weapon in WA -
The laws are as follows

WEAPONS ACT 1999 - SECT 3

3. Interpretation

Controlled weapon means —

(a) an article prescribed by regulations to be a controlled weapon; or

(b) any other article, not being a firearm or a prohibited weapon, made or modified to be used

WA WEAPONS ACT 1999 - SECT 7

7. Controlled weapons

(1) Except as provided in section 10, a person who, without a lawful excuse, carries or possesses a controlled weapon commits an offence.

Penalty: imprisonment for 2 years and a fine of $24 000.

(2) Except as provided in section 10, a person who has a lawful excuse to carry or possess a controlled weapon commits an offence if the person carries or possesses it in a manner that could reasonably be expected to cause someone —

(a) to be injured or disabled; or

(b) to fear that someone will be injured or disabled.

Penalty: imprisonment for 2 years and a fine of $24 000.

(3) In this section a lawful excuse to carry or possess a controlled weapon does not include the excuse that the weapon is carried or possessed for defence.

(4) Subsection (3) does not apply to a controlled weapon of a kind prescribed for the purposes of this subsection as long as it is carried or possessed in such circumstances, if any, as the regulations may prescribe.

(5) Regulations under subsection (4) may apply generally or to a particular person or class of persons.

[Section 7 amended by No. 34 of 2009 s. 7.]

WA WEAPONS REGULATIONS 1999 - SCHEDULE 2

CONSERVATION AND LAND MANAGEMENT REGULATIONS 2002 - REG 12

12 . Possession or use of firearms, spears, restricted devices etc.

(1) A person must not, without lawful authority, have in his or her possession on CALM land a firearm or ammunition unless that thing —

(a) is completely stowed within a vehicle or vessel; and

(b) in the case of a firearm, is unloaded and disassembled.

Penalty: a fine of $1 000.

(2) A person must not, without lawful authority, have a spear, speargun, gidgie or Hawaiian sling in his or her possession in —

(a) a restricted area declared for the purposes of regulation 9; or

(b) an area classified under section 62(1a) of the Act as a sanctuary area,

unless that thing is completely stowed within a vehicle or vessel and, if it is practicable to do so, is unloaded and disassembled.

Penalty: a fine of $1 000.

(3) A person must not, without lawful authority, have in his or her possession on CALM land any restricted device that is intended to be used for the taking of fauna or that constitutes a danger to the public.

Penalty: a fine of $1 000.

(3a) A person must not, without lawful authority —

(a) discharge a firearm on CALM land; or

(b) use a spear, speargun, gidgie or Hawaiian sling in —

(i) a restricted area declared for the purposes of regulation 9; or

(ii) an area classified under section 62(1a) of the Act as a sanctuary area;

or

(c) use a restricted device on CALM land for taking fauna or in a manner that constitutes a danger to the public.

Penalty: a fine of $1 000.

(4) Nothing in this regulation prohibits a person from having or using a thing in his or her possession on CALM land where that person has lawful authority to take fauna using that thing.

(5) In this regulation —

restricted device means —

(a) a bow or cross‑ bow ; or

(b) an explosive, poisonous, noxious or narcotising substance; or

(c) a snare, trap or net; or

(d) any other equipment, implement, device, apparatus or other thing that is used, capable of being used, or designed or adapted for use for, or in connection with, taking fauna, and is not referred to in subregulation (1) or (2).

[Regulation 12 amended in Gazette 29 Sep 2006 p. 4306‑7; 27 Feb 2007 p. 625; 3 Dec 2010 p.