<prompt> Dry submarine in custodial injuries refer toBeating on soles of feetTying a plastic bag over the headImmersion of head in contaminated waterSuspending the accused by ankles  <response>: Suffocation: Near-suffocation may occur by means of a plastic bag placed over the head of the victim dry submarine. Ref - Krishan Vij textbook of forensic medicine and toxicology 5e pg - 193 