 A .38 caliber Charter Arms revolver , belonging to Abu @-@ Jamal , with five spent cartridges was retrieved beside him at the scene . He was wearing a shoulder holster , and Anthony Paul , the Supervisor of the Philadelphia Police Department 's firearms identification unit , testified at trial that the cartridge cases and rifling characteristics of the weapon were consistent with bullet fragments taken from Faulkner 's body . Tests to confirm that Abu @-@ Jamal had handled and fired the weapon were not performed , as contact with arresting police and other surfaces at the scene could have compromised the forensic value of such tests . 
 A .38 caliber Charter Arms revolver , belonging to Abu @-@ Jamal , with five spent cartridges was retrieved beside him at the scene . He was wearing a shoulder holster , and Anthony Paul , the Supervisor of the Philadelphia Police Department <a href='null_genetive' title='1'><mark>'s</mark></a>firearms identification unit , testified at trial that the cartridge cases and rifling characteristics of the weapon <a href='uninflect' title='2'><mark>were</mark></a> consistent with bullet fragments taken from Faulkner <a href='null_genetive' title='3'><mark>'s</mark></a>body . Tests to confirm that Abu @-@ Jamal <a href='been_done' title='4'><mark>had</mark></a> handled and fired the weapon <a href='uninflect' title='5'><mark>were</mark></a> not performed , as contact with arresting police and other surfaces at the scene could <a href='been_done' title='6'><mark>have</mark></a> compromised the forensic value of such tests . 
A .38 caliber Charter Arms revolver , belonging to Abu @-@ Jamal , with five spent cartridges was retrieved beside him at da scene . He was wearing a shoulder holster , and Anthony Paul , tdaSupervisor of thdahiladelphia Police Department  firearms identification unit , testified at trial that the cartridge cases and rifling characteristics of the weapon was consistent w bullet fragments taken from Faulkner  body . Tests to confirm that Abu @-@ Jamal done handled and fired the weapon was not performed , as contact with arresting police and other surfaces at thedaene could done compromised the forensic value of such tests .