How the check is made
- Identify whether the incident relates to a goal, penalty, direct red card, or mistaken identity.
- Check the attacking phase before a goal or penalty if the possible offence could change the outcome.
- Ask whether the on-field decision is clearly and obviously wrong, or whether a serious incident was missed.
- If the decision is factual, such as offside position or ball out of play, VAR can advise directly.
- If judgment is needed, the referee can use an on-field review before making the final decision.