I keep hearing about 'genetic fingerprinting' being used to
unequivocally identify rapists, sex-{*filter*}ers etc. Presumably, this
refers to genetic material being matched with the suspect. My question
is, can such genetic information be extracted from any cells, such
as {*filter*}, skin etc or just {*filter*}? Do body fluids such as sweat or
saliva contain any identifying features or is everyone's the same?
Many thanks,

Matthew Fletcher