Colworth is a large supermarket chain with a turnover in the billions of dollars. It is based in Queensland. It generates a significant amount of documentation both electronically and in hardcopy in its dealings with suppliers, manufacturers, growers and government. The Chief Executive Officer asks you to provide advice on the permissible methods of retaining documents and of the possible rulings by the Courts should such documents be required to be tendered as evidence. Explain the difference between the Queensland law and Commonwealth law in this regard.