Tag: Hair: Examination

Hair: Examination, Importance, & difference between Human Hair Vs. Animal Hair

Hair: Examination, Importance, & difference between Human Hair Vs. Animal Hair

Q. 1

The hair examination is important for the following cases except :

 A

To find out its origin

 B

To find the accused or victim

 C

In case of sexual assault

 D

In case of lead poisoning

Q. 1

The hair examination is important for the following cases except :

 A

To find out its origin

 B

To find the accused or victim

 C

In case of sexual assault

 D

In case of lead poisoning

Ans. D

Explanation:

D i.e. Pb poisoning


Q. 2

Hairs are preserved in which poisoning:

March 2007

 A

Arsenic

 B

Manganese

 C

Phosphorous

 D

Alcohol

Q. 2

Hairs are preserved in which poisoning:

March 2007

 A

Arsenic

 B

Manganese

 C

Phosphorous

 D

Alcohol

Ans. A

Explanation:

Ans. A: Arsenic

There are tests available to diagnose poisoning by measuring arsenic in blood, urine, hair, and fingernails.

The urine test is the most reliable test for arsenic exposure within the last few days. Urine testing needs to be done within 24-48 hours for an accurate analysis of an acute exposure.

Tests on hair and fingernails can measure exposure to high levels of arsenic over the past 6-12 months. These tests can determine if one has been exposed to above-average levels of arsenic.


Q. 3

Animal hair are/have:     

NEET 14

 A

Fine

 B

Thin

 C

Large scales

 D

Thick cortex

Q. 3

Animal hair are/have:     

NEET 14

 A

Fine

 B

Thin

 C

Large scales

 D

Thick cortex

Ans. C

Explanation:

Ans. Large scales

Quiz In Between


Q. 4

The poison that can be detected in hair/bones long after death is:                            

Gujarat 07; COMEDK 08; FMGE 08

 A

Lead

 B

Mercury

 C

Arsenic

 D

Cannabis

Q. 4

The poison that can be detected in hair/bones long after death is:                            

Gujarat 07; COMEDK 08; FMGE 08

 A

Lead

 B

Mercury

 C

Arsenic

 D

Cannabis

Ans. C

Explanation:

Ans. Arsenic


Q. 5

Animal hair are ‑

 A

Fine

 B

Thin

 C

With large scales

 D

Thick cortex

Q. 5

Animal hair are ‑

 A

Fine

 B

Thin

 C

With large scales

 D

Thick cortex

Ans. C

Explanation:

Ans. is ‘c’ i.e., With large scales

Trait Human hair

Animal hair

General Fine and thin Coarse and thick
Cuticle Scales short, broad, flattened/thin Scales large, wavy projections/step-like projections
Cortex Thick, 4-10 times as broad as medulla Thin, rarely more than twice as broad as medulla
Medulla Varies, narrow, continuous, fragmented or absent, medullary index < 1/3 Continuous, wider medullary index > 1/2
Pigment Evenly distributed Present near the medulla
Precipitin test Specific for human

Specific for animal

Quiz In Between



Hair: Examination, Importance, & difference between Human Hair Vs. Animal Hair

Hair: Examination, Importance, & difference between Human Hair Vs. Animal Hair


Introduction:

Hair Examination Importance

  • Identification: Identification  of  individual  which may  be  accused, mutilated body etc.
  • Source:  Source of origin, whether  animal  or human.
  • Sexual  offences: Rape and  unnatural  sexual  offences.
  • Crimes: Hair or fibers  found  at  the  scene  on  weapons  or clothes  helps in identification  of  accused.
  • Hit and  run case: When  specimens  of hair removed  from  various  parts of the  motor car  are  sent by authorities  for comparison  with victim’s hair.
  • Chronic  poisoning  by metals: Arsenic, antimony  radium  and  thallium. 

Examination Of Hair can be done by:

  • Temporary Mount
  • Scale Casting    (i) Cellulose Acetate Method     (ii) Polaroid Coater Method
  • Permanent Mount Cross
  • Sectioning Micrometry.

ldentification  of race  by hair

Human  hair Vs Animal hair

Exam Important

*4-+

Hair Examination Importance

  • Identification: Identification  of  individual  which may  be  accused, mutilated body etc.
  • Source:  Source of origin, whether  animal  or human.
  • Sexual  offences: Rape and  unnatural  sexual  offences.
  • Crimes: Hair or fibers  found  at  the  scene  on  weapons  or clothes  helps in identification  of  accused.
  • Hit and  run case: When  specimens  of hair removed  from  various  parts of the  motor car  are  sent by authorities  for comparison  with victim’s hair.
  • Chronic  poisoning  by metals: Arsenic, antimony  radium  and  thallium.
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