What is the purpose of a shin scrape in defensive tactics?

The purpose of a shin scrape in defensive tactics is primarily to shift balance and allow for an escape. This technique involves using the shin to scrape against an opponent's leg, which can disrupt their posture and stability. By doing so, it creates an opportunity for the defender to break free from a hold or engage in a more advantageous position. The action focuses on maintaining control of the situation and facilitating a safe exit rather than just inflicting pain or distraction. When executed properly, the shin scrape serves as a tactical maneuver that leverages body mechanics to gain an advantage during a confrontation.