“…Bullets from special police ammunition, such as Action 4 bullets (Figure 1), are designed to present only very slight mushrooming because of their specific designs or rather their hollowed cores, which can be delineated on CT as well. 13 The shape of these internal cavities varies among different types of police ammunition and can serve as individual characteristics for the identification of these bullets. 13 If a bullet is fragmented, the individual fragments can still provide information on the ammunition used.…”