Sometimes TNT is used to mean dynamite, or dynamite is used to mean TNT, because they can both be used in similar ways. If a person has been involved in a crime using TNT, scientists track it down by testing the hair molecules or clothing molecules to see if TNT particles are found on clothing or hair. It stays on your hair EVEN if you clean the TNT particles in your hair! TNT Is a form of dynamite and very explosive if handled incorrectly. Caution should be taken when using TNT.