Approach scene:
The crime scene investigator returns the microphone to its clip and starts driving to the latest task. Crime scene investigations begin before CSI enters structures, open spaces or wooded areas. In general, radio scheduling information is short and rarely reveals the full nature of the event. Much of this is to avoid attracting bystanders and media that may be monitoring the scheduling frequency. When CSI turned to a problematic street, his first obligation was to "turn on" his observations. He may carefully record what he sees, snoring and smell - or better yet - record them on a digital recorder. His first reaction to the scene must be, "Does it seem out of place?" The smell may be obvious and has an unusual sound.
Security and protection scenarios
It is hoped that the first responder will not cause too much damage to any potential physical evidence. Before entering the interior of the structure, it must be controlled to enter and exit. All sentinels at the entrance should be in place. CSI, after understanding the basic facts - in this case, it seems that the white male seems to have only one bullet wrapped around the head and the rigorous position - this comes from the first responder, so the CSI will determine the boundaries of the crime scene. Then... there was a crime scene videotape.
Conduct preliminary investigation
Again... an external investigation is required before entering the structure. This may just be around the outside of the structure to see if any obvious evidence is the same. This will include open windows, damaged doors, ladders, etc. The question CSI asks is... how to enter the structure?
Once inside the room, CSI will conduct a visual investigation of the actual room in which the accident occurred. This is a good time to take a photo of the whole scene. He will then investigate the adjacent rooms to determine if these spaces may have information about the event.
Most law enforcement agencies conduct such investigations as possible homicides for unattended deaths [no doctors present] - until otherwise decided.
Unlike some TV shows, CSI is on the spot to find, evaluate and collect physical evidence. In most institutions, statements of witnesses and survivors are handled by investigators/detectors.
Of course, throughout the investigation, CSI is recording records and/or records of its sensory observations.
The possibility of assessing physical evidence
The seemingly obvious nature should trigger the thinking process of CSI. What happened here, when did it happen, what kind of evidence should attend? The questions that should be answered initially are:
· Does the shooting happen in this room?
· Whether the body is moved [by the first responder or the perpetrator]
· Is there any moving object [especially the first responder or family member]
· There is an extra lens between the victim's head. This means checking walls, ceilings, room objects, etc.
· Is the casing obvious? If so - mark them with placards, evidence tents, etc. so they will be noticeable in the photo.
· Whether the bloodstains in other areas of the room are similar - indicating the movement of the victim
·The way the blood splashes
· There are no signs of struggle
· Is there a clear footprint in the blood?
Every crime scene can produce other questions that the CSI has to answer. The above list is only the most obvious issue.
Prepare a narrative of a scene
CSI notes can be a very critical part of the overall physical evidence available on site. Researchers must remember that this case may be tried for months or even years. Your notes must provide a complete picture of what you see and the evidence that impresses you with any impression. Don't guess what happened unless you have physical evidence to support it.
Capture scenes by photography
Make sure you have any overall physical evidence of the overall, medium range and close-up. Be sure to include the scale in the close-up.
Preparing a crime scene sketch
Many CSIs will prepare rough sketches on site and will complete detailed sketches at headquarters. The rough sketch should not contain or be less than the final detailed sketch. It is always recommended that the assistant provide assistance in making measurements, and it is best to have this person verify each measurement to avoid problems later.
Perform a detailed search
Traversing the scene per square inch, trying to find the smallest evidence particle. [ This is reminiscent of a recent case in which a woman was brutally beaten to death in the bedroom.
Many crime scenes require the use of evidence vacuum in the scene to collect any potential particulate evidence, such as hair and fibers. This step should be performed before any careful inspection of the victim.
Record and collect physical evidence
Due to potential evidence, it should be recorded in crime scene sketches and photographs. If your agent offers the luxury of a photographer at hand, the video usually tells the jury a story.
Crime scene evidence is useless if it is not properly labeled and packaged, and the chain of evidence begins when it is received. Collect all evidence using the appropriate type of container. Do not pack items that are wet with blood or other physiological fluids in plastic bags as this will accelerate decomposition. Mark and identify all collected evidence, including the investigator's notes.
Of course, the digital age in which we live focuses on electronic devices such as computers and mobile phones. Such evidence requires special handling and only those trained in digital projects can process and collect these items.
Conduct a final investigation
Make sure that each package containing physical evidence is grouped - nothing left. Do a final walkthrough to ensure that all potential evidence is packaged and tagged.
Release the crime scene
While it is normal for others interested in property to want to regain access, CSI should not rush, swindle or bully to release the scene until the work is completed.
Orignal From: Basic stage of crime scene investigation - tips for crime scene technicians
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