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And welcome to the third episode of my forensic friday series a series on this this channel. Where i talk through different aspects of forensic science and crime scene investigation. Im going to be talking about the documents needed when investigating a crime scene.
So when a crime scene is first entered. There are four ways that it needs to be documented in order to create a permanent record of the investigation that goes on the four ways our crime scene notes. A sketch photography and videography today.
Im only going to be talking about the notes and the sketch as i want to dedicate a whole video to the photography and videography crime. Scene notes. Alc.
Ntara meais notes are really important because they like i said create a permanent record of that investigation that goes on at a crime scene. These notes also create a sense of required accountability. So the notes contain a step by step of what each investigator.
Date. And how they went about the crime scene. So it minimizes the chance of evidence contamination.
Theres also a really incredible technology thats currently being developed and starting to be used where the dimensions use in the notes and the photos and videos taken are then being turned into vr images that the jury can then put on a headset and walk around the crime scene. Which is incredible to me also you might have seen in films and tv programs. That some investigators walk around with like a voice recorder and they talk into it its very dramatic you can actually do that but obviously a copy needs to be made of the audio and then it needs to be typed up so its kind of in a narrative format.
So that documentation can be used in court. Just got this image of like annalise keating. Talking to her voice recorder.
So the first of the two types of documentation.
Im going to talk about is the nose this year at university. Weve done a lot of work doing the scene of crime notes and the report and one of the most significant things that weve learned is just how accurate these notes need to be ive kind of created a mock up of what a crime scene note would look like before you writing. It so.
Heres one. I read oh yeah okay so the crime scene notes kind of need to contain all of the law information location of the offense address that kind of thing. They also need to contain things like the weather because whether or not it was raining on that day or whether it was sunny is actually really important with further investigations.
Its mostly just boxes that need to filling in but then theres few boxes. Unlike. The simple version of the crime scene notes.
Which need to have a more detailed description in them. And those three boxes are the mo box. And the scene description box.
So. The modus operandi box is one that took me a while to get my head round. Because its slightly complicated what you put in that compared to what you put in the scene.
Description box. So in this. We put the p of e.
And the egress. So so where we believe the suspect entered a room for example and then exited. It its also where we put for example with a burglary whether it was like a ransacked bedroom or whether it was quite a tidy search.
This is also the box that you would put whether there was like a visible sign of entry so for example if a lock on a doors been broken or whether theres a smashed window that somebody could have climbed through.
So mo sounds firm modus operandi. So modus operandi basically means kind of like what happened in the course of a crime. So the other box that needs some kind of description in it is the scene description box now this box is dedicated to for example.
A house description. So whether the house is an attached four bedroom house. Or whether its a flat on the third floor for example what kind of entry is whether its locked doors or a key code in apartments.
And then the description of the room as it suggests. A scene description. The notes are contemporaneous so they need to be carried out as the investigator goes along so as they go into room as i go into house as they talk to the person who owns the house so the other thing.
I wanted to talk about was the crime scene sketch. So it is apparent that the use of crime scene. Sketches has reduced as technology has advanced about crime scene sketches do a much better job of actually representing dimensions of a room because when you draw a crime scene sketch you actually have to measure each wall and each piece of furniture.
So that you can triangulate things. Within the sketch. All of the sketches and notes are carried out in pen.
So they cant be rubbed out and changed or corrupted in any way. Now crime z. Sketch might be my least favorite thing to do within scene investigation.
Just because they are so difficult to get right so that is two methods of documentation that you used a crime scene like i said in the next episode. I will talk about photography and videography used in a crime scene. I thought that deserved it video in itself.
So i hope you enjoyed this video and the rest of forensic friday. Ill put a link in the description of the playlist of the other episodes. But thank you for watching and i will see you next time music you .
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