Here's an example of what's due today

Documentation and custody

Wed, Sep 9, 2026 · Week 3 · Principles of Biomedical Technology (Principles of Biomedical Science)

Today's goal: Explain forensic documentation steps and chain of custody, then complete the PLTW scene task online.

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.

Documentation and custody exit ticket

Completes: An exit ticket that has the student sequence the scene-documentation steps and list required chain-of-custody record fields, checking recall of the scene task.

Four documentation steps in order:

1. Photograph the scene

2. Sketch the scene with measurements

3. Log each item

4. Collect each item

Three required chain-of-custody fields:

Who collected the item
Date and time of collection
A signature at every transfer

Why the order matters: photographing and sketching first captures the scene before anything is disturbed, so collection never destroys the record of how the scene looked.

Order	Documentation step
1	Photograph
2	Sketch with measurements
3	Log each item
4	Collect

Also due today: Hand in your exit ticket before leaving class. Also complete the online investigating-the-scene task.

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: Sequencing scene documentation and identifying valid custody-record fields

Which sequence correctly orders the steps of documenting a crime scene?

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

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