The senior officer who stopped the match at Hillsborough will today give evidence at the inquests into the deaths of the 96 people who lost their lives in the tragedy.
Superintendent Roger Greenwood, whose evidence is due to last until next week, was the commander in charge of policing inside the ground on April 15, 1989.
The inquests resumed on Monday for the 100th day.
Today, the jury will hear from Mr Greenwood who was at pitch level when the crush happened in the central pens of the ground’s Leppings Lane terraces.
At the opening of the inquests earlier this year, coroner Lord Justice Goldring said Mr Greenwood saw fans coming out of the gates in the pens and onto the pitch.
He went over to the pens and gestured to people to get back.
Mr Greenwood tried to radio control but could not get through.
He then waved his arms at the control box and was spotted by match commander David Duckenfield who sent superintendent Bernard Murray on to the pitch.
Mr Greenwood ran onto the pitch to speak to the referee and the match was stopped between 3.05pm and 3.06pm.