Fish tailing of margins in stab wound is seen with?
Single edged knife
Double edged knife
Bayonet
None
Fish tailing of margins in stab wound is seen with single edged knife. A knife blade with a double edge will normally produce a symmetrical elliptical wound with both ends pointed; a knife with a single-edged blade may show relative blunting ("fish-tailing") of one end of the entry slit. However, a single edged blade can produce a wound with two pointed ends, mimicking an injury from a double edged blade. A bayonet, which has a ridge along the back of the blade with a groove along each side, may produce a slit like an elongated letter "T".