Can't be the victim's agent ad litem, conflict of interest. Violate the lawyer law
Can be used as the agent of the victim of criminal incidental civil action, accusing the defendant of committing a crime and demanding civil liability.
Defense lawyer law
Article 39 A lawyer shall not act as an agent for both parties in the same case, nor shall he act as an agent for legal affairs that have conflicts of interest with himself or his close relatives.