[moderator note: the following post is full of misconceptions and inaccurate information. please read the discussion further on to avoid legal consequences] mimosa hostillis root bark(im asuming this is what you are refering to)is not a controlled substance in australia,it can be imported as long as it is thoroughly dried,contains no foreign matter, is not capable of propagation and all packages are labelled with full botanical names.there are no permits etc. needed and it doesnt require quarantine entry if the above is followed.dried root bark also doesnt require gamma-irradiation if these rules are followed.I have obtained this information from customs myself and if anyone would like to see the full e-mail of requirements let me know. I also know of a vendor that often ships to australia whos product meets customs requirements,if any ones interested, pm me. If your material doesnt meet requirements gamma-irradiation costs $45.50 per consinement and takes 4 weeks,thats it,and iv been advised that treatment would not effect the scent. it was stated earlier in this thread that it would pass through quarantine, then customs, but this isnt the case. customs first screens all packages,and then if a quarantine risk is found it is sent to quarantine,if not they dont even see it, theres no quarantine entry needed with this product. also can any 1 tell me the purpose of gamma-irradiation? just curious as medical steralisation is done by gamma-radiation,not irradiation, and this seemingly doesnt make sense as i thought it was for sterilisation of the plant matter.