(1) The owner of a trade secret or a person authorised by the owner of a trade secret has a privilege to refuse to disclose and to prevent any other person from disclosing the trade secret unless the value of the disclosure of the trade secret substantially outweighs the disadvantages caused by its disclosure.

(2) In making his determination as to the existence or otherwise of the privilege the presiding officer shall consider whether the trade secret is adequately protected by patent, trade mark, copyright or other law and whether adequate protection can be provided by disclosure of the trade secret in chambers or in any other appropriate manner.

(3) When disclosure of a trade secret is required a court, on its own motion or at the request of any party, may take such actions to protect the trade secret from further disclosure or unauthorised usage as may be appropriate.