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  3d Immersive simulation of a training school for crime scene officers

This application uses a games approach to familiarise the students with the basics of Crime Scene Investigation as taught in BTEC Science Level 2 Extended Certificate Unit 13. In the Crime Scene Training Room is a body lying in a pool of blood. The students must gather the evidence without contaminating the crime scene and take it to the Crime Laboratory. At each stage they are given instructions aurally and written (on in-game plasma TVs) on what they need to know. They start outside the Store Room...

  

Here they are required to stock up with the  tools of the trade. The TV describes what they need and shows them details of  the items where necessary. The orange buttons allow them to select the items  when they are needed. Once stocked up, the TV directs them to the Locker  Room.

The Store Room

Here they are required to don a protection suit. The TV tells them why this is needed and directs them to the Scene of  Crime Training Room. Access to the Scene of Crime Training Room will be denied  unless the student is wearing the full protective uniform with gloves and  boots.

The Locker Room

This contains the mock-up of a crime.  This is where the students will use the items that they have picked up from the  Store Room. For example, they need to obtain a swab of the blood, but it has to  be done correctly. They need to place a marker by the blood, take a photograph,  use the swab and then label it. The application will give advice when any  attempt to collect the evidence incorrectly is made. They are free to go to the  Crime Laboratory at any time to see details on the suspects (which may help  them find the evidence they need) or to process any of the  evidence.

The Scene of Crime Room

The Crime Laboratory

 When the student clicks on the microscope, if he/she  is in posession of a labelled fibre, the fibre is mounted on a slide and put under the microscope revealing the magnified image of the fibre as shown here.  The DNA is analysed by the equipment shown below and outputs a DNA  'fingerprint'.

When the student clicks  on the equipment, the swab tip goes into the test-tube and the enzyme is added  along with a dye. A sample is then placed in the electrophoresis apparatus which separates out the strands of DNA by their length. The owner of the blood  sample is then displayed. The DNA 'fingerprint' is now available for comparison with samples found on the suspects. A computer with a scanner can be used to  identify the owners of fingerprints:.

Each time a photograph is  taken the image appears on the electronic incident board. As the evidence is  processed it is matched against the suspects and the incident board is  annotated with the results. The student needs to decide whether the evidence incriminates or exonerates each suspect.

The Crime Incident Board