England v Australia, 1st Investec Test, Trent Bridge, 2nd day July 11, 2013

England seek clarity over Trott dismissal

The ECB have requested clarification from the ICC on the chain of events that led to Jonathan Trott being adjudged lbw in England's second innings at Trent Bridge.

Andy Flower, the England team director, went to see the ICC match referee, Ranjan Madugalle, after the TV umpire, Marais Erasmus, overruled the on-field umpire, Aleem Dar, following Australia's review of Dar's decision to give Trott not out.

Erasmus took the decision to overrule Dar despite conflicting TV evidence and without the chance of inspecting Hot Spot from the crucial side-on position. Sky Sports, the host broadcaster who supply the Hot Spot cameras, told Erasmus the technology was not available as the delivery to Trott was not recorded because the technology had been cued to show the previous delivery, the dismissal of Joe Root to a catch down the leg side.

In a comment posted on ESPNcricinfo, Warren Brennan, Hot Spot's inventor, said the issue was down to "operator error".

"Here is the absolute truth from our perspective in regard to the Trott incident," he wrote, "it was operator error. My operator did not trigger the system in order to cater for the Trott delivery. Instead the operator sat on the Root delivery in order to offer a replay from the previous ball and did not realise until it was too late that he should have triggered the system for the Trott delivery as the priority. Simple mistake, something that anyone could have made but my Hot Spot operator has worked on the system since 2007 and to my knowledge this is the first serious mistake he has made."

England have asked the ICC to explain the protocol whereby a TV umpire can overrule despite an absence of the expected technological aides and asked for those protocols to be reviewed.

"It's very frustrating," James Anderson said afterwards. "Trott has hit the ball and been given not out. He did hit it. It is frustrating that it got overturned. We're all for technology because, since it came in, more decisions have been given out correctly than wrongly, so we want it."

While replays suggested a deviation before the ball hit Trott's pad - perhaps from an edge, perhaps in the air - there was no evidence of an edge on Hot Spot from the front-on angle. The Snickometer, a visual representation of the noise made as the ball makes contact with the bat, is utilised by Sky for the purposes of entertainment, but is not currently among the approved ICC aides. It did not suggest an obvious edge.

The England team management were also perplexed after Ashton Agar was given the benefit of the doubt by Erasmus following a very tight stumping appeal when he had scored just 6. Agar went on to score 98 - the world record contribution from a No. 11 batsman in Test cricket - and added 163 for the tenth wicket - another world record - in partnership with Phil Hughes.

"I thought the stumping was out, but I saw it on the big screen so it's hard to tell," Anderson added. "Matt Prior was pretty confident it was out."

It may also be worth noting that, had Root utilised the DRS, he may well have been reprieved. There was no evidence of Hot Spot following his dismissal to a leg side catch but, after consultation with his captain, Alastair Cook, Root did not call for a review. Those who suggest that the technology does not currently support the DRS, may feel they have further evidence for their case.

George Dobell is a senior correspondent at ESPNcricinfo