Photoshop
Well Lit photo of Scene: This is a photo of a simulated crime scene in which a victim was murdered with a firearm. The first photo should always be what the scene looks like in a well lit environment. It is necessary to get a full view of where the incident occured, using a mannequin in place of a real body. A tripod is set up to simulate the firearm, using a laser to show trajectory when the room is dark. The tripod is imporant, as it ensures that the photos taken are at the same distance and have the exact same view. Using a shutter release cable, a photo is taken and we can move onto the next step.
ISO: 400 Aperture: f/8 Shutter Speed: 1/13 Sec.
Dark Photo With Laser: This photo is of the same view as the previous one, it is going to use timed exposure to ensure we get a good image with a red laser being used. This may take a few tries but, when the room is dark, a black card can be held where the laser begins and once the timed expusre begins, the person holding the card will walk slowly toward the mannequin in place of the victim, keeping the laser shining on the card in clear view of the camera. When the laser hits the card, it shines and creates an effect that will show you the trajectory of the laser being used in place of the firearm.
ISO: 400 Aperture: f/16 Shutter Speed: 30 Sec.
Layered Photoshop to Show Laser in Well Lit Room: Once each photo is taken, they can be layered over eachother to create a photo that is well lit and has the visbale red laser that is present in the dark photo. This is a useful tool for showing firearm trajectory in court to get a better visual of the crime and can help the jury get a more accurate representation of what transpired.
Well Lit Photo of Evidence: This is a photo of a piece of evidence that is known to have traces of blood with an attempt to clean off. When photographing evidence like this, it is important to mount the camera on a tripod to ensure that all photos have the same field of view and capture the same scene. Using a shutter release cable we can get a clear photo and avoid blur from holding the camera. Much like with the trajectory photography, the photo does not need to have the highest f-stop, as long as the evidence can be seen clearly.
ISO: 400 Aperture: f/8 Shutter Speed: 1/200 Sec.
Dark Photo with Bluestar on Bloody Evidence: This photo is of the Bluestar that has been sprayed on the area where there is blood to show it's presence in a dark room. It is a chemical that reacts with the hemoglobin in the blood and has chemical luminescence for a short time in, best seen in a completely dark room. With timed exposure, we can capture it at peak luminescence and get a accurate representation of where the blood was for a period of time even after it has been cleaned. Attempting the photography may take several tries to get the best results.
ISO: 800 Aperture: f/4.5 Shutter Speed: 30 Sec.
Layered photo with BlueStar in Well Lit Photo: After all photography has been taken successfully, we can take the photos and layer them over eachother. It results in a well lit photo of the evidence with the Bluestar luminescence visable on it. This is used for court room presentation to give the jury a good idea of where the blood was and the amount that was present. The blood has been collected well before the photography with Bluestar but, it is good to note, studies show that it does not interefere with DNA analysis.
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