**Core Concept**
In forensic medicine, the post-mortem report in cases of death occurring in police custody must document the circumstances accurately and legally. Video recording is the most reliable and comprehensive method to capture real-time events, including the environment, actions, and interactions during the incident.

**Why the Correct Answer is Right**
Video recording provides a continuous, objective, and tamper-resistant record of the entire event, including the time, place, and behavior of individuals involved. Unlike photographs or tapes, video captures movement, facial expressions, and contextual details in real time. It is legally recognized in India under the Indian Evidence Act and the Police Act, ensuring authenticity and admissibility in court. The Ministry of Home Affairs and the National Police Commission recommend video recording as the standard for such cases.

**Why Each Wrong Option is Incorrect**
Option A: Tape recording is outdated and less reliable than video; it lacks visual context and cannot capture dynamic events.
Option C: Photographic recording is limited in scope and cannot show motion or sequence of events.
Option D: "All" is incorrect because only video recording is legally and practically mandated; other methods are insufficient or not acceptable.

**Clinical Pearl / High-Yield Fact**
In police custody death cases, video recording is mandatory under forensic protocols — it is the only method that ensures a continuous, verifiable, and legally admissible record of events.

✓ Correct Answer: B. Video recording