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newSchoolWorks.com › VoTechWorks › Agriculture, Environment & Public Service › Crime Scene / Forensic Technician › Scene Documentation & Photography › Lesson 9
AGR-CSI53-02 · Lesson 9 · 10.5 clock hours · demo

Video Documentation & Drone/Aerial Overview Awareness

Objective. Students will produce a narrated walk-through video of a staged indoor scene that follows a systematic path, keeps the camera steady, and provides clear verbal identification of every item documented.

⚠ Pending professional review

This lesson, its worked examples and its practice questions has not yet been verified by a licensed professional in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.

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Why Video Documentation Matters

Still photographs capture individual moments, but video captures continuity — the spatial relationships between items, the layout of a room, and the path an investigator took through a scene. A well-produced walk-through video allows detectives, attorneys, and jurors to mentally enter a scene they never visited. For that reason, video must be planned, systematic, and narrated clearly. A shaky, silent, or out-of-order recording can actually harm a case by creating confusion about the scene's condition.

The Entry Narration

Every walk-through video begins before the camera moves. While holding the lens on a neutral reference point — often the exterior of the entry door — the operator speaks a complete entry narration aloud:

This narration becomes part of the permanent record. If any detail is wrong, stop recording, state the correction on camera, and continue. Never splice or edit crime-scene video after the fact — doing so raises chain-of-custody questions and may compromise the recording's admissibility.

The Systematic Clockwise Path

Once the entry narration is complete, the operator enters the scene and follows a consistent, pre-planned path. The standard approach is a clockwise circuit of the room, beginning from the primary entry point and returning to it. This mirrors the same systematic approach used in still photography and sketch work, so all three records align.

Move at a slow, deliberate walking pace — roughly one step every two to three seconds. Keep the camera at a stable height (approximately chest level or on a stabilizer) and pan slowly enough that each wall, surface, and item is legible in the frame. A pan that sweeps from one wall to the other in under two seconds is too fast for a viewer to process.

When you reach a piece of numbered evidence, pause the walk, zoom in slowly to a close-up, state the item number and a brief description aloud ("Item 4, brass cartridge casing, located approximately two feet from the east wall"), and then return to your working distance before continuing the circuit.

Keeping the Camera Steady

Uncontrolled camera shake is one of the most common errors in crime-scene video. It makes footage difficult to watch and obscures detail. Practical controls include:

If a stabilizer is not available, a slow walk combined with the two-handed grip is adequate for most indoor scenes.

Self-Review and the Checklist

After recording, play the video back immediately on site before the scene is altered. Use a structured self-review checklist to assess:

1. Entry narration — all required elements present

2. Clockwise path — maintained throughout

3. Camera shake — absent or minimal

4. Each numbered item — verbally identified on camera

5. Close-up pause at each item — completed

6. Audio clarity — narration audible over ambient noise

If the playback reveals a missed item or inaudible narration, record a supplemental segment on the same file while the scene is still intact. Note the supplement in your written log.

Safety in the Field

Before entering any scene for documentation:

FAA Part 107 and Aerial Documentation — Awareness Only

Drones (unmanned aircraft systems, or UAS) are increasingly used to document outdoor crime scenes, crash sites, and large search areas. In the United States, operating a drone for commercial or government work — including crime-scene documentation — requires the remote pilot to hold an FAA Part 107 Remote Pilot Certificate. Key points every forensic technician should understand:

This course does not conduct live drone flights. Understanding what aerial documentation adds — and knowing the legal requirement to have a certified operator — is the competency required at this level.

Key terms9

Entry NarrationA verbal statement recorded at the beginning of a walk-through video that identifies the date, time, location, case number, and operator before any movement through the scene occurs.
Systematic Clockwise PathA standardized method of moving through a crime scene in a clockwise direction from the entry point, ensuring consistent and complete coverage that aligns with photographic and sketch records.
Walk-Through VideoA continuous, narrated video recording of a crime scene that documents spatial relationships, evidence locations, and overall scene conditions in real time.
Pan SpeedThe rate at which the camera rotates horizontally across a scene; a controlled, slow pan speed is required so that details remain legible to viewers.
FAA Part 107The Federal Aviation Administration regulation that governs small unmanned aircraft system (drone) operations for commercial and government purposes in the United States, including a mandatory Remote Pilot Certificate.
StabilizerA mechanical or electronic device — such as a gimbal or stabilizing grip — used to reduce camera shake and produce smooth footage during a walk-through.
Chain of CustodyThe documented, unbroken sequence of possession and control of evidence or records — including video recordings — from collection through court presentation; any gap or alteration can undermine admissibility.
Aerial OverviewDrone or aircraft footage that documents the broader geographic context of a crime scene, including scene boundaries, approach routes, and the spatial distribution of evidence across a large area.
Self-Review ChecklistA structured form completed by the operator during immediate playback of a walk-through video to verify that all required narration elements, coverage, and technical standards were met.
In class: Instructor demonstrates a walk-through video technique using a smartphone or camcorder: entry narration (date, time, case number, operator), systematic clockwise path, steady pan speed, and close-up pauses at evidence items — students observe and critique a good example vs. a bad example video. · Students produce their own walk-through video of a staged scene, then review it immediately on playback, completing a self-review checklist for narration clarity, pan speed, and item coverage. · Instructor delivers a brief illustrated lecture on FAA Part 107 drone operation requirements and how aerial documentation is integrated with ground-level records — no drone flight is conducted, but students identify what an aerial overview adds to documentation.
Materials: Smartphones or camcorders; tripod or stabilizer; staged indoor scene; self-review video checklist; projector for good/bad example playback; FAA Part 107 overview handout.
Check: Instructor reviews each student's video using a 10-item checklist (entry narration complete, clockwise path maintained, no uncontrolled camera shake, each numbered item verbally identified and briefly zoomed) — 9 of 10 required.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

Crime Scene Documentation
1. Which piece of information is REQUIRED as part of the entry narration at the beginning of a crime-scene walk-through video?
Crime Scene Documentation
2. A forensic technician is recording a walk-through video and reaches Evidence Item 7, a shoe impression near the window. What is the correct procedure at that point?
Crime Scene Documentation
3. What is the primary reason crime-scene video recordings should never be edited after capture?
Crime Scene Documentation
4. During playback a student notices that her narration is inaudible for about 20 seconds due to a passing vehicle. The scene has not yet been altered. What is the best corrective action?
Crime Scene Documentation
5. Which physical technique BEST reduces vertical camera bounce during a walk-through video recorded without a tripod?
Crime Scene Documentation
6. A forensic technician at a large outdoor scene wants to use a drone to capture an aerial overview. The technician does not hold an FAA Part 107 Remote Pilot Certificate. What should she do?
Crime Scene Documentation
7. What unique value does an aerial overview add to crime-scene documentation that ground-level photography and video cannot fully provide?
Health and Safety / Scene Integrity
8. Before entering a crime scene to record a walk-through video, a technician notices bloodstained surfaces throughout the room. Which PPE is MINIMALLY required before entry?
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