<prompt> Tattooing in old decomposed body can be visualized by use of all except -H2O2 3Gamma raysInfrared photographyExamination with magnifying glass  <response>: Tattoo in decomposed bodies can be visualised by 3 hydrogen peroxide, infrared photography and magnification glass in decomposed bodies. It is a method of identification. Ref: K.S.Narayan Reddys Synopsis of Forensic Medicine and Toxicology, 29th edition, Chapter 4, page-56. 