Angle of impact determination from bullet holes in a metal surface

Liscio, Eugene; Imran, Rabbia

doi:10.1016/j.forsciint.2020.110504

Cited by 11 publications

(12 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another method to establish the angle of incidence at which a bullet impacts 1.35 mm sheet steel was determined by superimposing an ellipse on a digital photograph of the bullet defect, and calculating the angle from the length and width of the ellipse [ 107 ]. The study describes the formation of the defect and the applied method and gives the results of its application.…”

Section: Shooting Incident Reconstructionmentioning

confidence: 99%

Interpol review of forensic firearm examination 2019–2022

Mattijssen

Kerkhoff

Hermsen

et al. 2023

Forensic Science International: Synergy

View full text Add to dashboard Cite

Section: Shooting Incident Reconstructionmentioning

confidence: 99%

Interpol review of forensic firearm examination 2019–2022

Mattijssen

Kerkhoff

Hermsen

et al. 2023

Forensic Science International: Synergy

View full text Add to dashboard Cite

“…4150 Carbon Steel. This steel is generally tougher and more resistant than regular carbon steel (Liscio & Imran, 2020). Hence, this might have likely contributed to the insignificant increase of bullet striation marks as the number of shots fired increased.…”

Section: Number Of Shots Fired Vs Bullet Striation Marksmentioning

confidence: 99%

“…It is suspected that the ricochet effect of the bullets would differ after hitting different target surfaces (Nishshanka et al, 2021a). This phenomenon is essential in the forensic context as the impact of firing may vary due to the nature of the target surface, different shooting angles, and distances (Liscio & Imran, 2020). Therefore, this research aims to create an equation model that includes all the factors, including bullet striation marks, shooting angles and ricochet angles, allowing maritime CSI to create a near-accurate ballistic reconstruction scene.…”

Section: Introductionmentioning

confidence: 99%

Effects of Shooting Angles and Ricochet Angles on Bullet Weight Upon Impact on Three Types of Woods (Balau, Resak, and Seraya)

Sam¹,

Yee²,

Hamzah³

et al. 2023

JST

View full text Add to dashboard Cite

This study aims to determine if the number of shots fired, bullet striation marks, and shooting and ricochet angles could influence bullet weight on three types of woods: Balau, Resak, and Seraya. The weapon and ammunition used in this study were CZ 75 SP-01 Shadow semi-automatic pistol with 9 mm full metal jacketed bullets (7.45 g). A total of 432 shots were fired, and only 114 bullets produced a ricochet effect. The result of objective one showed no significant relationship between the number of shots and the number of bullet striations for all three kinds of wood. Correlation-Regression analysis for the second objective showed a significant relationship between shooting angle and bullet weight when shooting on Balau (p < 0.01, R² = 0.065) and Seraya (p < 0.01, R² = 0.199) but not on Resak. The shooting angle influenced the bullet weight by 6.5 % to 20 % when shooting on Balau and Seraya. Both kinds of wood are closely related and share fibre composition and modulus of elasticity (MOE) characteristics. The result of the third objective showed a relationship between ricochet angle and bullet weight during the shooting on Resak (p < 0.01, R² = 0.142) but not on Balau and Seraya. The ricochet angle on Resak influenced the bullet weight by 14.2 + 9.8 %. It is probably due to Resak having the highest MOE among the three types of woods. This study concludes that bullet weight loss is due to the ricochet effect and the composition of the bullet’s target.

show abstract

“…7.62 × 39 mm, AK rifles, bullet holes, bullet trajectory determinations, sheet metal, shooting reconstruction metal has been frequently considered with different ammunition combinations due to its frequent appearance in shooting incidents with bullet holes [2,3,[6][7][8][9][10][11][12]. These studies have described bullet hole characteristics on sheet metal surfaces in relation to bullet trajectory determination.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, a recent study [12] has highlighted that the bullet's caliber and surface type also play a major role in providing accurate and repeatable results when the ellipse method is used. Another study [7] has highlighted that bullet impact marks on sheet metal have characteristic error patterns from low‐ to high‐impact angles and that the ammunition type has a significant effect on the error pattern.…”

Section: Introductionmentioning

confidence: 99%

AK bullet (7.62 × 39 mm) holes on 1‐mm sheet metal: A forensic‐related study in aid of bullet trajectory reconstruction

Nishshanka

Shepherd

Ariyarathna³

2021

Journal of Forensic Sciences

View full text Add to dashboard Cite

Bullet holes play a major role in the trajectory determination of fired bullets, potentially suggesting where the shots were fired from. Few methods are currently employed to estimate the angles of incidence of fired bullets using bullet holes. The literature has stressed that knowledge about the impact behavior of the specific bullet-substrate interfaces, including the most viable method for estimating the angle of incidence of that combination, requires empirical testing to enable successful analysis. The perfo-How to cite this article: Nishshanka B, Shepherd C, Ariyarathna R. AK bullet (7.62 × 39 mm) holes on 1-mm sheet metal: A forensic-related study in aid of bullet trajectory reconstruction.

show abstract

Angle of impact determination from bullet holes in a metal surface

Cited by 11 publications

References 9 publications

Interpol review of forensic firearm examination 2019–2022

Interpol review of forensic firearm examination 2019–2022

Effects of Shooting Angles and Ricochet Angles on Bullet Weight Upon Impact on Three Types of Woods (Balau, Resak, and Seraya)

AK bullet (7.62 × 39 mm) holes on 1‐mm sheet metal: A forensic‐related study in aid of bullet trajectory reconstruction

Contact Info

Product

Resources

About