Authors :
Lyka G. Pasinhon; Kyle B. Ta-asan; John Reniel D. Bacani; Karl M. Calpito; Jairus Philip C. Catubig; Francis Edison D. Ibarra; Jetro Shane B. Napadao; Leighmar P. Resonable; Joanne Mae B. Rondina
Volume/Issue :
Volume 8 - 2023, Issue 4 - April
Google Scholar :
https://bit.ly/3TmGbDi
Scribd :
https://bit.ly/42CcuSH
DOI :
https://doi.org/10.5281/zenodo.8280936
Abstract :
Bloodstain Pattern Analysis refers to the
gathering, classification, and interpretation of the
distribution and shape of bloodstains associated with a
crime. Cast-off spatters are a crucial component of a
practical, scientific, and medically based reconstruction
of a crime since they provide a wealth of information.
The focus of the study is to determine and compare the
number of primary bloodstains, number of satellite
stains, and the length of cast-off trail produced by a
bolo, ice pick, butterfly knife, and kitchen knife. A
trebuchet was constructed to swing the instrument
simulating a person swinging a weapon. The
instruments were submerged in pig’s blood and then
attached to the arm of the trebuchet. The trebuchet was
then set in motion and produced the cast-off spatter
pattern. The number of primary bloodstains, number of
satellite stains, and the length of cast-off trail produced
by each instrument were recorded and treated using the
randomization method and the ANOVA Test. After the
experimentation was carried out, the results were
analyzed and yielded the following findings: For the
number of primary stains, the bolo exhibited an average
number of one hundred thirty-one primary stains, the
ice pick yielded an average of fifty-seven primary stains,
the butterfly knife had an average of eighty-seven
primary stains, and the kitchen knife had shown an
average of one hundred and six primary blood stains.
For the average number of satellite stains, the bolo had
twenty-nine satellite stains, the ice pick had an average
of sixteen stains, the butterfly knife showed twenty-eight
satellite satins on average, and the kitchen knife has an
average number of ten for its satellite stains. For the
length of the cast-off trail, the bolo had an average trail
length of six hundred forty and five tenths of
centimeters, the ice pick had an average trail length of
five hundred seventy-one centimeters, the butterfly
knife had an average trail length of six hundred
nineteen and sixty-seven hundredths in centimeter, and
the kitchen knife exhibited a cast-off trail with the
average of four hundred nineteen centimeters.
Keywords :
Cast-off, Blood Spatter, Violent Crimes, Characteristics of Cast-Off Spatter.
Bloodstain Pattern Analysis refers to the
gathering, classification, and interpretation of the
distribution and shape of bloodstains associated with a
crime. Cast-off spatters are a crucial component of a
practical, scientific, and medically based reconstruction
of a crime since they provide a wealth of information.
The focus of the study is to determine and compare the
number of primary bloodstains, number of satellite
stains, and the length of cast-off trail produced by a
bolo, ice pick, butterfly knife, and kitchen knife. A
trebuchet was constructed to swing the instrument
simulating a person swinging a weapon. The
instruments were submerged in pig’s blood and then
attached to the arm of the trebuchet. The trebuchet was
then set in motion and produced the cast-off spatter
pattern. The number of primary bloodstains, number of
satellite stains, and the length of cast-off trail produced
by each instrument were recorded and treated using the
randomization method and the ANOVA Test. After the
experimentation was carried out, the results were
analyzed and yielded the following findings: For the
number of primary stains, the bolo exhibited an average
number of one hundred thirty-one primary stains, the
ice pick yielded an average of fifty-seven primary stains,
the butterfly knife had an average of eighty-seven
primary stains, and the kitchen knife had shown an
average of one hundred and six primary blood stains.
For the average number of satellite stains, the bolo had
twenty-nine satellite stains, the ice pick had an average
of sixteen stains, the butterfly knife showed twenty-eight
satellite satins on average, and the kitchen knife has an
average number of ten for its satellite stains. For the
length of the cast-off trail, the bolo had an average trail
length of six hundred forty and five tenths of
centimeters, the ice pick had an average trail length of
five hundred seventy-one centimeters, the butterfly
knife had an average trail length of six hundred
nineteen and sixty-seven hundredths in centimeter, and
the kitchen knife exhibited a cast-off trail with the
average of four hundred nineteen centimeters.
Keywords :
Cast-off, Blood Spatter, Violent Crimes, Characteristics of Cast-Off Spatter.
