Microscopic diatoms, abundant in water, are crucial indicators in suspected drowning. Their presence in internal organs (e.g., stomach, lungs) signifies water aspiration during the drowning event. When an individual drowns, diatoms enter these organs with ingested water. Forensic experts utilize diatom detection in these organs to confirm drowning as the cause of death, especially when other evidence is ambiguous.
| LIST I | LIST II | ||
|---|---|---|---|
| A | Chop wound | I | Axe |
| B | Punctured wound | II | Needle |
| C | Bruises | III | Whip |
| D | Incised wound | IV | Knife |