A total of 21 suicides by fire (16 males and 5 females) were investiga
ted. In at least 18 of the 21 cases, flammable liquids were used as ac
celerants leading to severe and extensive burns. The determination of
carboxyhemoglobin concentrations revealed comparatively low levels of
between 3 and 30 per cent in suicides committed in the open whereas fo
ur out of five deceased found dead in gutted cars showed carbon monoxi
de saturations ranging from 34 to 87 per cent. In 18 cases (86%) soot
was detectable in the airways even in cases with slightly elevated car
boxyhemoglobin concentrations, indicating the importance of a careful
examination of the airways at autopsy for the detection of vital signs
.