Research regarding Digital Forensic Technologies has become more active with the recent increases in illegal accesses to computer system.Many researchers focus only on the techniques or mechanisms for evidence detecting and evidence analyzing

without considering the security of forensic mechanisms themselves

and the digital evidence can't be protected completely.Based on the analysis of relative researches

secure area is proposed to protect forensic mechanisms from attacking.A mechanism called I-LOMAC has been designed and implemented to evaluate this method.The results demonstrate the advantage in protecting the forensic mechanisms.