Q15. What do you understand by the Umpire decision review in cricket? Discuss its various components. Explain how silicon tape on the edge of a bat may fool the system.

Model Answer:

Introduction

The Umpire Decision Review System (UDRS or DRS) in cricket allows players to challenge on-field umpire decisions. Introduced to improve decision accuracy, it uses advanced technology to ensure fair play. Teams can request reviews for specific types of dismissals, such as LBW or caught behind, within certain limits.

Body

Components of UDRS

• Ball Tracking (Hawk-Eye): Projects the ball’s path to assess LBW decisions by predicting where the ball would have gone after hitting the batsman.
• UltraEdge (or Snickometer): Detects sound waves when the ball passes close to the bat or pad, helping confirm edges.
• HotSpot: Uses infrared imaging to detect contact points between the ball and bat, often indicating faint edges.
• Real-Time Replays: Helps in close-call situations, such as no-balls or boundary checks, to verify on-field decisions.

Silicon Tape Issue

• Effect on HotSpot: Players may use silicon tape on the bat’s edge to reduce friction and heat transfer, potentially masking thin edges on HotSpot. This can fool the system, as the lack of a heat signature could lead to a “not out” decision even if there was contact.

Conclusion

‍The UDRS enhances decision-making accuracy in cricket, though it is not foolproof. Issues like silicon tape on the bat edge highlight potential weaknesses, underscoring the need for constant technological refinement to uphold the system’s integrity.

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