The Third Umpire in Cricket: Role, Powers, and DRS Collaboration

Who Is the Third Umpire?

The third umpire (also called the TV umpire) is an off-field official in international cricket matches who uses television replays and ball-tracking technology to assist the two on-field umpires. They sit in a dedicated area with access to multi-angle camera feeds, Hawk-Eye ball tracking, UltraEdge (Snicko), and Hot Spot (infrared imaging). The third umpire can be referred decisions by the on-field umpires or by DRS player reviews.

Primary Functions of the Third Umpire

• DRS Reviews: When a player reviews an on-field decision (caught behind, LBW, run-out, caught), the third umpire assesses the evidence from all available camera angles and technology.
• Run-Out and Stumping Decisions: Line calls for run-outs and stumpings are routinely referred to the third umpire when the on-field umpire is unsure.
• Boundary Decisions: Whether a catch was taken cleanly with the fielder in contact with the boundary rope is assessed by the third umpire.
• Front-Foot No-Balls: In some tournaments, the third umpire checks every delivery for front-foot no-balls using foot-zone cameras.
• Catches: Whether the ball carried to the fielder and whether the ball touched the ground before the catch is completed.

How DRS Referrals Work

When a player initiates a DRS review, they have a limited time (15 seconds typically) to signal the review by making a T-shape with their hands. The on-field umpire signals the review upward. The third umpire then assesses the evidence from all angles. For LBW reviews, Hawk-Eye ball-tracking projects the ball's path; for caught-behind reviews, UltraEdge microphone technology detects sound spikes as the ball passes the bat; for catches, multiple camera angles and Hot Spot are used.

Communication Protocol

The third umpire communicates with the on-field umpires via earpiece. After reviewing the evidence, they indicate their decision: 'out', 'not out', or 'soft signal stands' (meaning the on-field decision is upheld because there is insufficient evidence to overturn it). The on-field umpire then signals accordingly. This communication chain is largely invisible to the crowd but is critical to getting decisions right consistently.