What is a printing process in which an image is photographed through a screen on to a sensitized printing plate that after development is etched?
Answer: Photogravure is a printing process in which an image is photographed through a screen on to a sensitized printing plate that after development is etched.
What creates a photograph?
A photograph is an image made by a photo-chemical reaction which records the impression of light on a surface coated with silver atoms. The reaction is possible due to the light-sensitive properties of silver halide crystals. Photography utilizes this chemical principle to record color and black and white images.
What does straight photography mean?
Summary of Straight Photography The term generally refers to photographs that are not manipulated, either in the taking of the image or by darkroom or digital processes, but sharply depict the scene or subject as the camera sees it.
Who is the father of straight photography?
Paul Strand
What is modernist photography?
Photographers began to embrace its social, political and aesthetic potential, experimenting with light, perspective and developing, as well as new subjects and abstraction. Coupled with movements in painting, sculpture and architecture, these works became known as ‘modernist photography’.
Who was considered the father of art photography?
Oscar Gustave Rejlander
What is the difference between police photography and forensic photography?
Answer: Any police photographs are considered forensic if they are recorded and sworn by the police photographer as evidence authored under law. Also, surveillance photos of a suspect or a security camera documenting a beer store robbery can be introduced as forensic when sworn by the owner and then used as evidence.
What is framing in photography?
In visual arts and particularly cinematography, framing is the presentation of visual elements in an image, especially the placement of the subject in relation to other objects. Framing can make an image more aesthetically pleasing and keep the viewer’s focus on the framed object(s).
What is the best angle for photographing evidence?
Two photographs would be taken from each of three directions, one with the electronic flash positioned at a 25 degree angle and the other positioned at a 45 degree angle. You will probably want to use a lower angle for impressions in dust and for very shallow impressions, and a higher angle for deep impressions.
How long does evidence including photographic evidence need to be kept?
How long does evidence, including photographic evidence, need to be kept? being granted a new trial. Because of this, many officers retain them indefinitely.
Which type of evidence is not permitted to be shipped by mail to a crime lab?
Which type of evidence is not permitted to be shipped by mail to a crime lab? Not all evidence is easily identified as evidence.
What must be considered when collecting evidence?
Each container should have: the collecting person’s initials; the date and time it was collected; a complete description of the evidence and where it was found; and the investigating agency’s name and their file number. Each type of evidence has a specific value in an investigation.
What is physical evidence list some examples?
Examples of physical evidence include a document, a hair, fibers, fingerprints, soil, and blood. Class Characteristics are properties of physical evidence that can be associated only with a group and never with a single source.
What type of evidence do you think would be most difficult to collect?
The type of evidence that would be most difficult to collect would be trace evidence such as fibers, hair, or specs of dirt. Special vacuums and other specialized tools such as tweezers are needed to carry out the collection of trace evidence. Trace evidence is often small and hard to find/collect.
What are the 5 steps in crime scene investigation?
INTERVIEW, EXAMINE, PHOTOGRAPH, SKETCH and PROCESS.
What are the four patterns of evidence?
Common search patterns include the spiral, strip/line, grid, zone/quadrant, and pie/ wheel.
What is the golden hour in investigation?
Magalong said the ‘Golden Hours’ or the first 72 hours of the initial phase of investigation of a major case such as murder, homicide or kidnappings/abduction is really crucial.
What are the steps of an investigation?
The following steps should be taken as soon as the employer receives a verbal or written complaint.
- Step 1: Ensure Confidentiality.
- Step 2: Provide Interim Protection.
- Step 3: Select the investigator.
- Step 4: Create a Plan for the Investigation.
- Step 5: Develop Interview Questions.
- Step 6: Conduct Interviews.
What are the 3 stages of the death investigation process?
The 3 stages of a Death Investigation are Examination, Correlation, and Interpretation.