A television review ends with a signal and a graphic. It also ends with a record of what was examined and why the conclusion followed, filed away from public view.
The log is an officiating document
Reviews are recorded with the decision, the evidence consulted, and the technology outputs relied on. The file supports assessment of officials rather than public accountability.
Umpire performance is evaluated on decision accuracy, and evaluation requires knowing what the official saw. A signal alone does not support that.
The record is also what allows a protocol failure to be identified afterward — a step skipped, an angle not consulted, a threshold applied incorrectly.
Protocol order is part of the record
Review protocols specify a sequence: check the fairness of the delivery, then the point of contact, then the tracking output, in a defined order.
The order matters because an earlier step can end the review. A no ball found at the first step means the later questions are never reached.
Logging the sequence therefore captures the reasoning, not just the outcome. A correct conclusion reached out of order is a procedural defect even when the answer is right.
Why tracking outputs are stored with the call
Ball-tracking produces a predicted path with an associated uncertainty, and the rules define how much uncertainty defers to the on-field decision.
Storing the output alongside the ruling shows whether the margin rule was applied correctly. Without it, a marginal decision cannot be reviewed afterward at all.
This is why the umpire's call convention exists as a written rule rather than an instinct. It has to be auditable, which means it has to be specified.
What is published and what is not
Spectators see the graphic and the outcome. The evidence file, the review timings and the assessment notes remain internal to the officiating operation.
Governing bodies occasionally publish aggregate accuracy figures, but individual review records are treated as employment material relating to the officials involved.
The asymmetry frustrates supporters who want reasoning explained. It exists because the document's primary purpose is workforce assessment, not communication.
Why franchise cricket pushed this further
Short-format competitions compressed review times sharply, because a long stoppage damages the broadcast product in a way it does not in a five-day match.
Tighter time limits raise the value of a clean protocol. An official working to a strict clock needs a defined sequence rather than open-ended examination.
The written record is what makes a compressed protocol safe. Speed without an audit trail would make errors invisible rather than rare.

