[GALADION]

In Greece it is illegal to spearfish using ANY breathing device.
Generally, European spearfishermen/women, are freediving and spearfishing w/scuba is frawned upon.
However I think that spearing w/scuba in the Med is also counterproductive because the fish are extremely suspicious and they will all be scared away by the bubbles of your breathing device.

I hope I helped.
Safe diving!