Why your instinct to trap a knife is a fatal mistake
In short: In a confrontation involving a knife, the most common human instinct—to grab or trap the weapon—can be your undoing. Because blade movements are so rapid, attempting to seize the knife often results in immediate injury to the hands, rendering you unable to defend yourself further.
The primary danger in a slashing attack lies in the speed of the blade. Because the motion is so fast, trying to 'trap' the weapon immediately often leads to the victim being cut in the hand. This is a critical failure because the flexor muscles, which are responsible for the ability to flex your hands and arms, can be compromised by a cut. If these muscles are damaged, you lose the mechanical ability to maintain a grip or perform any further defensive maneuvers. This distinction is vital because slashing differs from stabbing, which focuses on the point. A slash can occur to either side of the body. The speed of the blade makes immediate trapping nearly impossible. This rapid movement is why initial protection is the priority.
To counter this, the strategy shifts from grabbing to redirection and protection. Instead of reaching for the blade, the defender should use the opposite hand in a 'mirror' motion. The goal is to offer the non-dominant side to the blade to protect vital areas like the belly. By offering the opposite side, you ensure that if a cut does occur, it is less likely to disable the muscles necessary to continue the struggle or eventually grab the attacker. The defender must move with the attacker if they choose to go down. This movement prevents the blade from reaching the belly. You must offer the side that preserves your ability to grab. This ensures you can still hold the person even if a cut occurs.
Effective defense also relies on physics rather than just upper-body strength. If an attacker is significantly heavier, a defender must 'drop their weight' into the arm to create enough leverage to move the opponent. Once the attacker's momentum is redirected and they 'open' their stance, the defender can transition from a defensive posture to a strike, specifically targeting the face to end the encounter. The defender should use their whole body to manage a heavy opponent. This technique works even if the attacker weighs 300 pounds. You must redirect the attacker until they open up. Once they are open, you can strike the face from different angles.
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Sources
- Summary by Intellect · source: How to Defend Yourself against Slasher | Self-Defense
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