Chromatography is where ink is used as evidence. It is often used if a threatening letter has been used or a victim has left a note at the crime scene. The letter could then be placed under water for about half an hour and the ink will run. Each pen goes differently when placed in water. You could then find out which pen was used. You could take pens from suspects and see which one is the one used. Here is some pictures of chromatography!
No comments:
Post a Comment