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IP networks were growing rapidly over past decades. Perhaps more significant is the impact that it is also provide a medium to the illicit activities. Therefore, IP monitoring of lawful interception of IPv4 Networks was proposed to combat against those illicit activities over IP Networks. The Law Enforcement Agencies (LEA) can monitor the IP packets as well as capture them for analysis or providing forensics. In order to assist IP Monitoring of lawful interception from technical perspective, we propose a scheme named Decision Tree Based Rules Redistribution Algorithm (DTBRRA) which can be fast applied on IP networks.