Trek said..
I had dramas like that with low life's at McCarrs Creek.
Originally I designed an SMS bilge pump alarm for my boat because my bilge pumps keep failing (I thought) and the boat flooded a few times. I discovered later it was because the electronic sensor on the pumps got slime on, then then when wet the slime would stay wet and the pump would stay on and on and flatten the batteries. Very annoying replacing everything under the floor each time so I designed an SMS bilge pump alarm.
One day I came to my boat and the cockpit was full of squid ink stains, squid bits, beer bottles (none full!) and rubbish.
That was even more annoying so I added a "burglar catcher" input to the SMS bilge pump alarm with great success ,even catching some of them by putting an invisible trip wire across the cockpit :-) I was able to sprint to the boat and shine flood light on it from the shore and the low life's scattered everywhere!
Later the invention became this www.trektransponder.com.au. Anyone who wants one can have one half price on this forum if they don't mind a beta version.
Such a shame to hear. Ive been working up there for years providing marketing services to real estate agents and home sellers. Combination of real-estate agents and neurotic sellers from that area have lead me to dump all the clients from around there. Sailing up there is awesome though, but seems almost risky to have the boat there away from the maritime cops at church point