Feature of ante moem drowning is

Cadaveric spasm Weed paicles, twigs, leaves, etc may be seen firmly grasped in hands due to cadaveric spasm. This indicates that the person was alive when entered the water and was struggling. Cadaveric spasm with weed paicles in hand can be taken as a definite ante-moem sign of drowning. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 264