I recently went to China with 3 of my staff for 4 days for a trade expo. On returning we were all pulled aside in Sydney. We were separated and questioned about our movements in Shanghai at length. Any laptops were taken and the hard drive copied, any mobiles also had the hard drive copied. We had our tickets to the expo on us, but we still were grilled. We were all guys and the extent of our private relationships together were questioned. Including one young University graduate who was recruited who was asked how he got the job?? !!! Any piece of paper was photocopied including the travel diary of one young guy who had written it as his first overseas travel experience. Our mobile phones were taken and the contents downloaded. When all this was questioned, we were told that we were in control of customs. When I said that I resented giving the password to my laptop I was told that it would be kept for months until they cracked it, if i refused to do so. Does anyone have any legal rights when re-entering this country? Citizens or not?