I would agree with Michael's statement. It's both a deterrent and a strong signal. Let's not underestimate the power of statements by parliamentarians, of people here in this building voting and saying something. Those are very powerful and they reverberate throughout the country.
Will it stop? Unfortunately, it won't. Many things have been illegal for centuries and are still happening, but the message still needs to be sent, and the punishments still need to be applied.