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.
VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.
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:
- Date and time
- Location address or case identifier
- Case number (as assigned by the agency)
- Full name and title of the operator
- A brief statement of why documentation is occurring (e.g., "initial scene walk-through prior to evidence collection")
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:
- Tripod or stabilizing grip — use one whenever possible.
- Both hands on the device — elbows tucked in to the body.
- Smooth pivot from the waist rather than swinging the arms.
- Walking heel-to-toe to reduce vertical bounce.
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:
- Confirm the scene has been cleared and secured by law enforcement.
- Don appropriate PPE — at minimum, nitrile gloves; add a mask, Tyvek suit, and eye protection if biological or chemical hazards are present.
- Never move or touch evidence to improve the camera angle — document it as found.
- Announce your path aloud if other personnel are in the scene to avoid contamination or collision.
- Secure camera straps and cables so they do not drag across evidence.
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:
- Part 107 certificate is obtained by passing an FAA knowledge test at an approved testing center; no school endorsement is required.
- Drone flights must comply with airspace restrictions, maximum altitude limits, and line-of-sight requirements specified in Part 107.
- Aerial footage must be integrated with ground-level photography and sketches so that scale and orientation are clear to reviewers.
- The aerial overview typically documents: overall scene boundaries, approach/exit routes, relationship of the scene to surrounding geography, and large-area evidence distribution.
- Forensic technicians who do not hold Part 107 certification should never operate a drone at a scene — they should coordinate with a certified operator from their agency or a partnering unit.
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.
Record this lesson on my transcript. Sign in with your key and enrollment email to record lessons (enroll free if you have no key). This page stays open to read and practise.