Depending on the specifics of the draw, they are conducted using a manual barrel or a random number generator.
For the barrel draws, each compartment on the clear perspex barrel is filled with numbered balls that will cover every ticket combination possible for the particular draw.
For example, if a draw has a maximum of 500,000 tickets (the last ticket number sold being 499,999) the first compartment of the barrel will be filled with five balls, 0, 1, 2, 3, and 4, then each following compartment is filled with balls numbered 0-9.
The barrel will be spun five times, when it stops the numbered balls fall into the compartment, this produces a number when read from left to right. If the balls do not drop into the compartments, the barrel will be re-spun.
For draws where the barrel is not used, the lottery ticket numbers are drawn using an 'accredited random number generator', meaning the winning ticket numbers are chosen at random from the available range of tickets sold in each lottery.
In accordance with State Government licensing requirements, our major draws take place in the presence of an external auditor.