Freediver, it's common sense, something you lack when it comes to chilling meat, as has been demonstrated.
Think about it, it can be a number of hours between kangaroos, ie, the time between slaughtering the first catch of the night to the last is often several hours so tell me, without a laboratory on deck, how on earth would you know what the degree of contamination was when you hand the carcasses over to the processors?
A friend of mine used to go pig shooting and kangaroo shooting in his late teens for a few extra dollars before he moved to Sydney and is the first to admit he himself wont eat wild meat slaughtered this way due to the uncertainty surrounding levels of contamination.
Then theres the newly discovered parasites we need to be concerned with, along with the risk of acquiring toxoplasmosis and a rare type of worm that invades then destroys muscle tissue.
FACT:
Australia has no dedicated research or diagnostic facility to investigate wildlife diseases. Detections of new diseases are handled on an ad hoc basis by government or university laboratories.
http://www.awpc.org.au/kangaroos/book_f ... seases.htm
Look, if you want to take your chances with potentially lethal produce, then by all means Freediver, enjoy, though I think with all due respect i'd rather heed my advice from those 'medically' or 'scientifically' qualified to at least a preliminary opinion , if this is ok with you?
And i'd just like to add, my friend who shot roos back in the late 80's was of the understanding these carcasses he surrendered were to go to pet-pack, (for pet food), this and genuinely believed he was doing a service to his rural community given at the time, they were in plague proportions this and were over grazing and compromising the survival of our other wildlife, grass-fed produce and even food crops.
He was actually quite surprised and concerned to learn (about a decade later after moving to Sydney) that the roos he and his mates had been shooting for sport and culling purposes and stuffing into the back of their fly-blown utes for several hours, sometimes days (they would go out all weekend) had found it's way to our restaurant tables and supermarket shelves and was being sold for human consumption.
Do you suppose the health department periodically check the hygiene compliance of recreational shooters who leave these carcasses dangling off the sides or in the back of their utes covered in flies for several hours, days even, before they make their way to the processing factory to offload their catch?
Lol, if so, you are stupider than you look Freediver, if this is even possible.
OUR GOVERNMENT DOESN'T GIVE A CRAP, THEIR PHILOSOPHY IS IF PEOPLE ARE STUPID ENOUGH TO BUY AND EAT IT, THEN SO BE IT.
THE ONLY TIME THEY CARED WAS WHEN OTHER NATIONS AROUND THE WORLD STARTED CONDUCTING TESTS OF THEIR OWN (IE THE UK AND RUSSIA) THEN REFUSED TO BUY IT, AND EVEN THEN, THEY MANAGED TO KEEP THE RATIONAL FOR THEIR HAVING TURNED THEIR NOSES UP AT OUR ROO-MEAT INDUSTRY RELATIVELY LOW-KEY.
See, my ex-roo shooting friend wont eat roo meat because he knows where it comes from and how it's treated before it makes it's way to our supermarket shelves, and this my friend was enough for me.
When asked if he'd consume his own freshly caught kangaroo meat, he said yes, though this was a number of years ago now, well before the outbreak of toxoplasmosis and a number of other newly discovered worms and parasites known to infest even the freshest of roo meat.
But again, good luck with it Freediver, each to their own...and if one day you discover paralysis in your spear-fishing arm this and generalised weakness, this or start feeling a bit 'funny' in the head you will know where to start when it comes to alerting the health authorities and sorting medical treatment.
Not that it will be of much use, given once the damage is done, it's done, they aren't like other worms you can take a pill for and be cured overnight.
These worms and parasites render the patents with long-term and latent effects, even neurological and congenital damage has been documented.
Take care.
You actually buy mince for the Magpies and stray cats? Are you trying to be the Aussie Cat Lady, Mantra? 
