Step 1: Key provision of BNSS 2023.
The Bhartiya Nagrik Suraksha Sanhita mandates that for offenses punishable with imprisonment of 7 years or more, a forensic team must visit the crime scene to collect evidence. Step 2: Purpose.
This provision strengthens the investigation process and ensures that scientific methods are used in serious criminal cases. Step 3: Conclusion.
Hence, the correct answer is (A) 7 years.