What is the most important prerequisite for photographing a crime scene? Why is this so critical? The most important thing is for the crime-scene to be unaltered. The photographs will not be admissible as evidence.
Overview sketch – consists of a bird's-eye-view or floor plan sketch of the scene. This is the most common type of sketch and consists of items on the horizontal plane (see Figure 4-1). Elevation sketch – portrays a vertical plane rather than a horizontal plane.
for the crime-scene investigators. Crime-scene investigators document the crime scene in detail and collect physical evidence. Crime-scene investigators include recorders to record the data, sketch artists to sketch the scene, photographers to take photos of the crime scene, and evidence collectors.
Close-up images of evidence can be taken out of context, so establishing the scene first with wide and medium shots is critical. In addition, photographs should be taken looking up from the scene to capture evidence or environmental factors that may be above the scene.
Photographs and crime sketches are the most effective and simplest way to represent a crime scene by the Investigating officer. They are most useful in supplying significant bits and pieces with exact measurement of the site and evidence where the crime has occurred.
Draw an outline of the main features of the landscape with a pencil, eg hills and valleys or buildings and roads. Add detail to the sketch to record more information, eg river features, such as meanders , river cliffs and rapids . Only draw people if they are important to the enquiry question.
Experienced photographers often use a technique called “painting with light” to expose image details in dark or near-dark conditions. In this technique, the shutter is held open for seconds or minutes and the photographer walks through the scene adding light from sources such as a flashlight or detached camera flash.
Audio recorded notes (which will later be made into written notes) Photographs.
What is true about capturing the details of a crime scene in investigation? The video recording process should precede the taking of still photos. Identify a factor associated with the use of digital video cameras in capturing crime scene evidence.
Understand what should be photographed at a crime scene and in what sequence. First, photograph the general area, then specific areas, and finally specific objects of evidence. Take exterior shots first because they are the most subject to alteration by weather and security violations.
What are the three basic photographs associated with crime scene photography? Overall photographs, Evidence-establishing photographs (mid-range), Evidence close-up/forensic quality photographs.
Photographs and crime sketches are the most effective and simplest way to represent a crime scene by the Investigating officer. They are most useful in supplying significant bits and pieces with exact measurement of the site and evidence where the crime has occurred.