Option D is the correct answer because CHFI v11 places major emphasis on rules of evidence , seeking consent , obtaining a warrant for search and seizure , legal issues, privacy issues and legal compliance , and the role of local/international agencies during cybercrime investigation . In a case involving multiple jurisdictions , cross-border systems , and lack of client consent, the investigator's first duty is to ensure the evidence-gathering process is legally valid in every relevant jurisdiction.
Working closely with legal counsel is essential because improper access can compromise admissibility, violate privacy laws, and expose the firm to legal liability. CHFI also highlights best practices for handling digital evidence , preserving evidence , and the importance of lawful authority before conducting intrusive forensic activity.
Option A is too limited and may ignore critical evidence. B would violate legal procedures. C is clearly improper because ownership claims do not override consent, privacy, or jurisdictional requirements.
Therefore, the most defensible and CHFI-aligned initial approach is to coordinate with the legal team, understand each legal regime, and obtain the necessary warrants or permissions before proceeding.