Use dust or ink to collect finger print 
Imported 
Learn how to locate hidden fingerprint on doorknobs, tables, glasses, telephones, automobiles and more. This spy detective project kit introduces kids the intriguing spy and recording evidence. 
Become a real researcher in your own private lab and perform cool science experiments. Securing a secret crime scene, gathering and documenting evidence, including fingerprints, footprints. 
Includes dusting powder, magnifying glass, ink pad, transparent stickers, fingerprint file cards, fingerprint collection cards. 
 Hours of concentrated fun and inspiration will not only bring children an inspiring and interesting journey but also could cultivate children's observation ability and scientific exploration spirit. 
 Easy follow the instruction, let your child to perform the most fun science activities.