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Ballistics > CRIME LABORATORY EQUIPMENT > Flashcards

CRIME LABORATORY EQUIPMENT Flashcards

1
Q

determine SIMILARITIES and DISSIMILARITIES of evidence and test evidence

A

Bullet Comparison Microscope

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2
Q

Two positions in comparing evidence and test bullet

A

Intermarriage
Juxtaposition

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3
Q

Half evidence and test bullet is projected

A

Intermarriage

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4
Q

At the same time?
At the same direction?
At the same magnification?
At the same image?
At the same level or plane

A

clock positions
left or right
same size when viewed
landmarks vs landmarks
refers to the height or elevation of stage plate

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5
Q

the critical SIDE by SIDE EXAMINATION of evidence and test bullet/shell.

A

Juxtaposition

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6
Q

Putting two things TOGETHER to emphasize their contrast between them.

A

Juxtapose

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7
Q

used in the PRELIMINARY EXAMINATION of fired bullets, and shells.

A

Stereoscopic microscope

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8
Q

CLOSE-UP EXAMINATION of tampered serial nos. of FAS

A

Stereoscopic microscope

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9
Q

here the LOCATION OF EXTRACTOR MARKS AND EJECTOR MARKS

A

Stereoscopic microscope

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10
Q

__________invented the FIRST Stereoscopic-style microscope with TWO EYEPIECES in_____

A

Cherubin d’ Oreans
1671

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11
Q

_______ introduce a “NOVEL” design that led him to become the FOREFATHER OF MODERN Stereoscope.

A

Honorato S. Greenough 1890

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12
Q

__________designed the FIRST SUCCESSFUL STEREOMICROSCOPE.
Introduced in US and was named ________ in _________.?

A

Francis Herbert Wenham (19th) of London
CYCLOPTIC
1957

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13
Q

Similar with the comparison microscope

A

Comparison projector 6 (CP-6)

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14
Q

Capable of comparing TWO FIRED BULLETS and SHELLS with a LARGE SCREEN.

A

Comparison projector 6 (CP-6)

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15
Q

_________ engineer and British army and inventor of Comparison projector 6 (CP-6)

A

William Howard Livens

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16
Q

used in TEST FIRING to acquire test shells and bullets for comparison.
The same caliber or brand of ammunition should be used and manufactured in the same year.

A

Bullet recovery box

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17
Q

Original Design (Square)
1. Length = 8ft or 96 in
2. 1ft or 12 x12 in on each side
3. ¼ inc thick = side
4. 1/8 in thick = tip

Modern Design (Tube)
A. Length = 92 inches
B. Diameter of body = 18 inches
C. Thickness of iron used = 1/8 inch
D. Frontal ring = 20 inches

A
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18
Q

Used in determining the WIDTH OF LANDS, the WIDTH OF GROOVES, and the diameter, and TWIST of a fired bullet.

A

Measuring Projector 6 (MP-6)

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19
Q

used to know the CALIBER of FA, bullet, and shell.

A

Caliper

20
Q

Caliper is used to determine the: BRSBSB

Aside from use of determining the Caliber of FA, bullet, shell and ammo.

A
  1. Bullet diameter
  2. Rim diameter
  3. Shell mouth diameter
  4. Bore diameter
  5. Shell length
  6. Bore length
21
Q

similar in use with Caliper.

A

Micrometer (C-clamp like)

22
Q

used to measure SMALL things and
small distances. This is an ENHANCEMENT of the Vernier Caliper.

A

Micrometer (C-clamp like)

23
Q

______ inventor of Micrometer (C-clamp like)

A

William Gascoine (17th)

24
Q

_________inventor of PALMER, which is used in measuring HANDHELD OBJECTS. It was introduced in Spain and was called Tornillo de Palmer.

A

Jean Laurent Palmer (1848-France)

25
Q

Determines the WEIGHT of fired bullet, shots/pellets to know its caliber, type and make of FA used.

A

Analytical or Torsion balance

26
Q

Measurements are expressed in GRAINS OR GRAMS

A

Analytical or Torsion balance

27
Q

used to determine the BORE diameter of FA or Caliber.

A

Taper Gauge

28
Q

used in determining the right measurement for wedding, graduation and personalized rings.

A

Ring measurer

29
Q

a SMALL instrument used in the examination of the INFERIOR SURFACE OF BARREL.

It has tiny lamp at its end and is being inserted in the barrel
TO DETECT IRREGULARITIES AND IMPERFECTIONS, ROUGHNESS AND SCRATCHES.

A

Onoscope

30
Q

measures PITCH OF RIFLING, which refers to a complete turn (360°) of a bullet inside the barrel.

measures the angle of TWIST of rifling, either pistol or revolver barrel.

Procedure: This instrument is used by inserting the telescope and aligning it with the axis of the
bore.

A

Helixometer

31
Q

measures the SPEED of the bullet or muzzle velocity of the bullet.

A

Chronograph

32
Q

_______ inventor of CHRONOGRAPH?

A

Alfred Lee Loomis (1918)

33
Q

not much was not reliable/accurate

A

Boulenge Chronograph

34
Q

used in MARKING fired bullets, shells and FAs submitted for examination.

This is being plug to a female outlet.

Used only when there is power supply.

A

Electric gun marker

35
Q

used in ORIENTATION/PRELIMINARY examination of fired bullets and shells with the use of series of microscopic lenses of different magnifications.

A

Shadowgraph

36
Q

contains a LARGE CIRCULAR GROUND GLASS that is about 14 in where the observation and comparison of the characteristics is done. This can
also take PHOTOMICROGRAPHS.

A

Shadowgraph

37
Q

a pointed instrument used to mark:

  1. fired bullets
  2. fired shells
  3. Firearms
  4. Metallic fragments

This must be solid and harder metal than the evidence to be marked.
This is used in manually engraving the initials and date.

A

Stylus

38
Q

Integrated Ballistics Identification System

A
39
Q

a MECHANICAL TRIGGER pull trigger tester

A

Trigger pull gauge

39
Q

used to handle bullets

A

Tweezers

40
Q

OPTICAL DEVICE consisting of a rigid flexible tube with an eyepiece on one end, an objective lens on the other linked together by a relay optical system in between.

A

Borescope

41
Q

calculate the drag coefficient of the bullet.
determining the Supersonic speed of bullet.

A

Wind funnel

42
Q

used to photograph projectile in flight.

A

Stroboscope

43
Q

ENABLES to determine the speed, position of bullet and shock waves the projectile produces.

A

Stroboscope

44
Q

______ inventor of Stroboscope an AMERICAN ENGINEER

A

Horod Eugene Edgerton

45
Q

used primarily in the laboratory in MARKING METAL EVIDENCE.

A

Electric gun marker

46
Q

used to drill deep accurate holes.

A

Gun drills/ Deep hole drills.

Ballistics (2 decks)

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