here is the link to the sample aptitude test http://content.defencejobs.gov.au/pd...g_20080811.pdf some other things you will need to know is what equipment you will be using like weapons etc,just dress nicely,and yeah get a haircut it shows your more interested and you really are prepared to do things like that.Just show confidence in the interview and answer all the questions well and you should be fine.You should always tell the truth, lying gets you burnt