Eccrine fingermarks — Hands were washed with soap and allowed
to dry. After which, the hands were placed in a clean plastic bag for
45 min before depositing the fingermarks.
Sebaceous fingermarks — Hands were washed with soap and
allowed to dry. Fingers were then rubbed on the nose area prior to
deposition.
Natural fingermarks — Hands were not washed in the past 3 h and
touching the face and head before depositing the fingermarks was
avoided.
The fingermarks were deposited by gently pressing a finger on examined
surfaces and labeled, respectively. A4 writing paper, white plastic,
brushed metal and glass were used as the substrates for fingermark
deposition.