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Become

forensic

scientists

and solve

the crime!!

Junior

Forensic

investigation

My Fingerprints

Copy by Phil Morton. Page Design & Illustrations by Michael O’Kane

Version 2.0 © Copyright Scientific & Chemical Supplies Ltd. 2010

In association with Staffordshire University, Forensics Department

Fingerprint Patterns

Scientists when looking at fingerprints try to sort them into groups. They usually sortthem by looking at the pattern that the ridges (lines) of the print make. Look at yourown fingerprints and see if you can decide which of the following they are.

Loops

In a loop; the lines in a print enter from one side, goround the middle of the print and then leave on thesame side that they entered.

Arches

In an arch; the lines in a print enter from one siderise up in the middle and then leave on theopposite side to that which they entered.

Whorls

In a whorl; the lines in a print turn through a full 360° making a circle, or a spiral. Thereare several different types of whorls.

SciChem Junior Forensic Investigations

Step 1: Each of the print cards has a specific layout anddetails that must be filled out, put your realdetails or make them up.

Step 2: Two people out of each group will take eachothers prints first and the rest will carry on fillingin the worksheets. The person not having theirprints taken should wear gloves.

When taking the prints you should demonstrate how

they may find it easier if they fold the fingerprint form

along the suggested lines when they are taking the

appropriate prints and place the form along the edge of

the table.

Step 3: The pupil wearing gloves will take the prints ofthe other pupil. Practise taking prints onto thenewspaper on the desk before using yourfingerprint form until you are happy you are notusing too much ink. Starting with the left thumb;the thumb is rolled in the ink pad covering thethumb in ink from nail edge to nail edge andthen rolled onto the print card, again from nailedge to nail edge.

Step 4: Repeat step 3 for the rest of the fingers on theleft hand and then the right hand. Then WASHand DRY your hands and switch with yourpartner.

Step 5: Once you have both finished let two morepeople out of the group start taking theirfingerprints, you should then make sure youhave completed the questions before you beginyour analysis.

Junior Forensic Investigations

Activity Instructions

SciChem

In association with Staffordshire University, Forensics Department

An introduction to the science of footprints, Pupils will practise the investigationskills, and knowledge of solids and liquids they have learned by investigating thepattern types on their own shoes. By comparing features of their footwear theycan learn about the traces they leave behind them and about everydayprocesses. This kit would be ideal for creating a display of the different prints leftbehind by different peoples’ footwear.

l 5x 1kg bags of casting mix

l Gratnells Tray + lid for storage

l Teaching notes, pupil worksheets + CD

ZFK 220 030 Junior Forensic Investigation Footprints Key Stage 2

Liven up yourcrime scenesand evidencedisplays withsome of this

authentic Crime Scene Tape. Strong and weatherproofthe extra mile will pay dividends for realism.

ZFK 080 240 Crime Scene Tape

Ideal for hectic classrooms, thiseconomical solution to inkingfingerprints uses an ink which is easyto clean from hands. 50mm diameter.

ZFK 080 030 Circular Inkpad

Used by professionalsto aid fingerprintcomparison and toprevent mistakes, theseare ideal to enable youto analyse prints andcount ridges withinthem.

ZFK 320 110 Retractable Ridge Counter

Zephyr fibreglassbrushes are ideal for usewith both normal andmetallic flake fingerprintpowders which are adifferent shape to normalpowders.

ZFK 070 010 Fingerprint Brush

An introduction to the science of invisible fingerprints, Pupils will practise theirinvestigation skills and knowledge of materials and surfaces to predict what willhappen to their fingerprints. Using different coloured powders they will alsoinvestigate pattern and colour in determining the best powder to use for eachsituation. They will practice the method of lifting fingerprints and will produce theirown developed fingerprints to take home.

l 5 Fingerprinting brushes l 2 Jars of Black fingerprinting powder

l 2 Jars of White fingerprinting powder l 1 Jar of Fluorescent fingerprinting powder

l Authentic fingerprint lifting tape l 20 powder trays

l 20 Cobex sheets l 5 Examination magnifying glasses

l Teaching notes, pupil worksheets + CD

ZFK 220 020 Junior Forensic Investigation Invisible Fingerprints Key Stage 2

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This forensic investigation scenario comes with everything you need to teachfingerprints as part of the syllabus or just a series of fun and educational activities.

l Structure of the skin, sweat and homeostasis l Classification and analysis of fingerprints

l Taking a suspects prints for comparison l Documenting finger prints at a crime scene

l Powder development techniques and Lifting fingerprintsl Classifying and comparing fingerprints.

l Importance of fingerprints at crime scenes l Chemical Development Techniques

ZFK 210 010

Also Recommended

Forensic Investigation of Fingerprints Kit Key Stage 4 / BTEC

Available to purchase via the website www.scichem.com

This refill kit comprises a set of fingerprint powders, lifting sheets, developer reagent and

another fingerprint brush for replenishing the kit or extending the kit for larger class sizes.

This poster is specifically designed as a learning aid to supplement the teaching kit butalso works well on it’s own, individually or part of a larger forensic investigation display.Fingerprint identification and classification and includes a diagram of latent printdevelopment techniques. Size 35” x 23”

ZFK 210 500

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Forensic Investigation of Fingerprints Refill Kit

ZFK 210 020 Forensic Investigation of Fingerprints Poster

This forensic investigation scenario and kit comes complete with simulated bloodsamples and serums, equipment, teachers & technicians guide and crime scenenotes for students. This activity kit covers;

l Components and function of blood l Preparation of microscope slides

l Haemoglobin and Presumptive blood testing l Antigens and Antibodies

l Blood types and blood type testing l Blood type frequencies

l Importance of blood at crime scenes

ZFK 200 010

Also Recommended

Forensic Investigation of Blood Kit Key Stage 4 / BTEC

This refill kit comprises a set of simulated blood samples, serums, presumptive testreagents and more spotting tiles for replenishing the kit or extending the kit for larger classsizes.

This poster is specifically designed as a learning aid to supplement the teaching kit butalso works well on it’s own, individually or part of a larger forensic investigation display.Covers blood components, blood typing and Blood in forensic science. Size 35” x 23””

ZFK 200 500

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Forensic Investigation of Blood Refill Kit

ZFK 200 020 Forensic Investigation of Blood Poster

Another Forensic Investigation booklet from

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