A method to enable continuous lawful interception of an ongoing voice and data session across one or more communication networks, the method is performed by a session continuity server controller and comprises the steps of: determining a content duplication element associated with a source communication network , wherein the content duplication element associated with the source communication network is determined from one or more network elements capable of performing a content duplication function based on one or more communication network properties associated with the source communication network ; determining an optimal session continuity server from a plurality of session continuity severs; initiating duplication of one or more first data packets associated with the ongoing voice and data session by the content duplication element associated with the source communication network ; detecting a handover of the ongoing voice and data session from the source communication network to a destination communication network ; determining a content duplication element associated with the destination communication network , wherein the content duplication element associated with the destination communication network is determined from one or more network elements capable of performing a content duplication function based on one or more communication network properties associated with the destination communication network ; and initiating duplication of one or more second data packets associated with the ongoing voice and data session by the optimal session continuity server and the content duplication element associated with the destination communication network , wherein the plurality of session continuity severs are network elements belonging to an environment for lawful interception, and wherein the determined optimal session continuity server from the plurality of session continuity severs is capable of maintaining continuity and sequence of the one or more first data packets and the one or more second data packets associated with the ongoing voice and data session. determining a content duplication element associated with a source communication network , wherein the content duplication element associated with the source communication network is determined from one or more network elements capable of performing a content duplication function based on one or more communication network properties associated with the source communication network ; determining an optimal session continuity server from a plurality of session continuity severs; initiating duplication of one or more first data packets associated with the ongoing voice and data session by the content duplication element associated with the source communication network ; detecting a handover of the ongoing voice and data session from the source communication network to a destination communication network ; determining a content duplication element associated with the destination communication network , wherein the content duplication element associated with the destination communication network is determined from one or more network elements capable of performing a content duplication function based on one or more communication network properties associated with the destination communication network ; and initiating duplication of one or more second data packets associated with the ongoing voice and data session by the optimal session continuity server and the content duplication element associated with the destination communication network , wherein the plurality of session continuity severs are network elements belonging to an environment for lawful interception, and wherein the determined optimal session continuity server from the plurality of session continuity severs is capable of maintaining continuity and sequence of the one or more first data packets and the one or more second data packets associated with the ongoing voice and data session. <EOS>