"...it is illegal to cut and remove water supply pipes and turn them into musical instruments." - I love that.
So it's OK to steal them for making bongs or weapons, just not musical instruments?

"...any panpipe group performing in Honiara playing on PVC pipes will be questioned."
Being a thief on a small island kinda defines "futility", doesn't it? I get an image of hundreds of PVC pipe enthusiasts who play bamboo pipes in public in the daytime, and meet in small groups in the bushes after dark, swearing oaths of allegiance and fidelity, then melting back into the shadows at the faraway sound of baying hounds...