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spec: However I must confess that the explanation of the 2nd and 3rd approaches left me somewhat confused as to the difference - I think more concrete examples would help . The Commission concludes that the [ former State employee ] may be retained by the law firm to review papers obtained from DEC ; however , he may not prepare documents for the firm if it is foreseeable that such documents may ultimately be reviewed by DEC , as he would be rendering services for compensation in relation to a matter before the agency .