If a body is left undisturbed, for how long does post moem staining persists -
Postmoem staining occurs sholy after death and persists until putrefaction sets in which is also known as primary lividity. Dr.Narayana Reddys Synopsis of Forensic Medicine and Toxicology 27th edition pg. 76.
Few hours
Few days
Few months
Persists till merges with discolouration of putrefaction
Death and postmortem changes