Drowning during methamphetamine intoxication precipitated by improper fluid administration: medico-legal case analysis.

Drowning is a common cause of death encountered in forensic practice, typically with clearly defined circumstances and mechanisms. However, in rare cases, the dynamics of death may be atypical and require a multidisciplinary evaluation. We present a highly unusual case of an 18-year-old male who drowned following the administration of fluids during a state of deep unconsciousness induced by fatal methamphetamine intoxication. The case illustrates how passive aspiration of fluids during deep unconsciousness with absent airway protective reflexes, inferred from toxicological levels (blood methamphetamine 4,818 ng/mL) and the observed clinical scenario, can result in drowning, particularly in the context of acute drug-induced neurological and cardiovascular suppression. The findings include typical autopsy signs of drowning and toxicological evidence of lethal levels of methamphetamine. The case highlights how scene statements, autopsy, toxicology, and diatom analysis jointly steer the assessment of criminal liability.