#forensicintro

We are going to Upload a series of Videos according to syllabus of NTA NET/JRF.

These Multiple Choice Questions will help in preparation of examination.

These videos will be prepared in following manner:

Syllabus has been divided into 10 Units and every unit has Pointed topics.

For example Unit - I consists

▪️Forensic Science,

▪️Physical Evidence,

▪️Crime Scene,

▪️Criminal Investigation,

▪️Courts,

▪️Organization of Forensic Science Laboratories of center and state, ▪️Fundamental rights,

▪️Criminal Profiling,

▪️Concept of quality control management in Forensic institutions.

So we will called it as a Topic 1, Topic 2 and so on.

In this Video we have covered Topic 1

Forensic Science: Definition, History & Development, Scope & Ethics in Forensic Science.

For More MCQs please Subscribe Our channel.

Like it✅, Share it↩ and Subscribe it✔.....

Textile Fibers is the basic and principle raw materials to produce various types of textile finished products. A fiber that can be spun into yarn or processed into textile such as a woven fabric, knit fabric, lace, felt, non-woven etc by means of an appropriate interlacing method is called as Textile Fibers.

Generally Textile Fibers can be classified into main two types:

👉 Natural fiber And,

👉 Synthetic fiber/Manmade fiber/Artificial fiber.

Textile Fibers can also be classified in the following ways:

✍ Classification of textile fibers based on sources

✍ Classification of textile fibres based on polymer

Textile Fibers and Forensic Science

Textile fibers are a key form of trace evidence, and the ability to reliably associate or discriminate them is crucial for forensic scientists. While microscopic and instrumental analysis can be used to determine the composition of the fiber.

Additional specificity is gained by examining fiber color.

I again want to share This video with those who want to ask if this field is good for them or not.

My team is getting approx 100 queries related to this only (We try to satisfy everyone with our answers but we heartly apologise if we couldn't).

I want to say that no field is good or bad, the choice, interest and time make it work.

Don't go for higher job opportunities, see if you can grab the only available job with your potential.

Is that field or subject suits your personality?

At This time when everyone is struggling with job crisis then no field is going to provide you one without dedication and knowledge and as you know forensic do not seek for knowledge only it also seek for reasoning, logic, sharpness.

So know yourself first so no one can reject you.

Don't forget to like and comment your opinion on this.. We want to make sure that everyone understand the good and bad..

Watch This video to know more...

https://youtu.be/8x-q9gi9k3E

The 12 characteristics of handwriting

1. LINE QUALITY

Do the lines flow or are they shaky and irregular? This can indicate the speed of the writing.

2. WORD AND LETTER SPACING

Are the letters and words equally spaced out, or are they bunched together? Or, is there seemingly no pattern to the spacing?

3. SIZE CONSISTENCY

Is the ratio of height to width consistent in each letter?

4. PEN LIFTS

Does the writer lift the pen from the paper or is the writing continuous? Excessive pen lifts can hint at simulation — someone deliberately altering their natural handwriting or copying that of another.

5. CONNECTING STROKES

Are uppercase and lowercase letters connected and continuous?

6. LETTERS COMPLETE

Are the letters fully formed, or are parts missing?

7. CURSIVE AND PRINTED LETTERS

Are the letters cursive, printed, or a combination of both?

8. PEN PRESSURE

Is the pen pressure equal for upward and downward strokes? When is the pressure applied?

9. SLANT

Do the letters slant to the left or the right, or does this vary?

10. BASELINE HABITS

Is the writing on the baseline of the paper, above the line, or below the line?

11. FLOURISHES AND EMBELLISHMENTS

Are there any fancy curls, loops or anything else unusual in the writing?

12. DIACRITIC PLACEMENT

Where are the crosses on t’s and dots on i’s? Are the t’s crossed? Is the cross on the t at the top, middle or bottom of the letter? Are the I’s dotted? If so, are they dotted to the left, the centre, or the right of the I?

Other things to be considered are spelling, phrasing and grammar. While investigating and comparing each of the above categories, the analysers also need to consider the following: Factors that can result in changes to a person’s handwriting:

Age

Mood

How much time they have to write

The writing instrument used

Drink and drugs

Illness

Trying to write differently

Question- What is Crime Scene Sketch?

Answer- A crime scene sketch is a permanent record of the size and distance relationship of the crime scene and the physical evidence within it. The sketch serves to clarify the special information present within the photo-graphs and video documentation, because the other methods do not allow the viewer to easily gauge distances and dimensions. A sketch is the most simplistic manner in which to present crime scene layout and measurements. Photographer /camera positions may be noted within a sketch also.

Question- Why is a sketch important to crime scene documentation?

Answer- ■ It accurately portrays the physical facts.

■ It relates to the sequence of events at the scene.

■ It establishes the precise location and relationship of objects and evidence at the scene.

■ It helps to create a mental picture of the scene for those not present.

■ It is a permanent record of the scene.

■ It usually is admissible in court.

■ It assists in interviewing and interrogating.

■ It assists in preparing the written investigative report.

■ It assists in presenting the case in court. Well-prepared sketches and drawings help judges, juries, witnesses, and others to visualize the crime scene.

Question-When should sketches be made?

Answer- Sketch all serious crimes and accident scenes after photographs have been taken and before anything is moved.

Sketch the entire scene, the objects, and the evidence.

Question- How many types of sketches are made of crime scene?

Facial Reconstruction Facial reconstruction is a method used in the forensic field when a crime involves unidentified remains. Facial reconstruction is usually performed by a sculptor who is an expert in facial anatomy.

Types of Reconstructions There are two main methods used in forensic facial approximation: 2-dimensional and 3-dimensional.

2D Reconstructions Two-dimensional facial reconstructions are hand-drawn portraits based on radiographs, antemortem photographs, and the skull. This method usually requires the collaboration of an artist and a forensic anthropologist. Recently developed, the F.A.C.E. and C.A.R.E.S. computer software programs quickly produce two-dimensional facial approximations that can be edited and manipulated with relative ease.

3D Reconstructions Three-dimensional facial reconstructions are either: 1) sculptures (made from casts of cranial remains) created with modeling clay and other materials or 2) high-resolution, three-dimensional computer images. Like two-dimensional reconstructions, three-dimensional reconstructions usually require both an artist and a forensic anthropologist. Computer programs create three-dimensional reconstructions by manipulating scanned photographs of the unidentified cranial remains, stock photographs of facial features, and other available reconstructions.

History of Drug, Poison and Chemistry