John Hay
John Hay Biomedical
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Here's an example of what's due today

Scene documentation lab

Thu, Sep 10, 2026 · Week 3 · Principles of Biomedical Technology (Principles of Biomedical Science)

Today's goal: Document a mock crime scene to SOP standard and examine trace evidence under magnification with a team.

Learn first

What a finished product looks like

This is a model of the work you should turn in today. Use it to check your own: match the structure and the level of detail, do not copy it. Your data and wording should be your own.

Team scene documentation packet
Completes: A team packet documenting a mock scene to SOP standard, including a scaled photo, a scaled sketch, an evidence log, and microscopy sketches of a trace sample at two magnifications.

Roles: Maria (photographer), Andre (sketcher), Lin (logger).

Photo: One overhead photo includes a ruler for scale and a label reading North.

Sketch: Scaled room sketch with a compass arrow and the table measured at 120 cm wide.

Evidence log:

  • Item 1: blue fiber near table leg, bagged and sealed, logged at 10:14
  • Item 2: single hair on chair, bagged and sealed, logged at 10:21

Microscopy: Blue fiber sketched at 40x (smooth, uniform width) and at 100x (twisted strands visible).

Contamination risk: A team member leaned over the table, so a stray hair could have dropped onto the scene. We noted this so it can be ruled out later.

ItemDescriptionCollectedLogged time
1Blue fiber by table legForceps, sealed bag10:14
2Single hair on chairForceps, sealed bag10:21
Evidence log table listing two trace items with descriptions, collection method, and the time each was logged.

Also due today: Submit the team scene packet as a shared document; each member notes their role on the cover page.

Check yourself

WebXam problem for today's skill

One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.

WebXam-style domain: Handling, Preparation, Storage and DisposalSelf-check skill: Including scale and magnification so scene documentation can be interpreted later
A team submits a scene photograph and a microscopy sketch of a fiber, but neither includes a scale marker or a recorded magnification. Why is this a documentation problem?

Tap an answer to see the full explanation. Nothing is recorded or graded.

Back to today's lesson