A big problem in Perth & Suburbs at the moment, probably elsewhere as well, no doubt around the country.  They suspect some may be getting sold at markets and car boot sales, see;

http://www.abc.net.au/news/2015-05-20/perth-residents-says-plant-theft-increasing/6483586 

I'll keep my eye out. Thanks for the heads up.

I had some stolen but I didn't go to the cops 'cos you're not supposed to be growing that stuff.

The Phantom