The inventor of cricket's controversial Hot Spot system has called for the removal of coatings on bats to improve the accuracy of his device.
The coatings are, however, perfectly legal under current regulations.
Australia's Channel Nine alleged on Wednesday that players in the current Ashes series between England and Australia were using silicone tape on their bats to avoid nicks being detected by the Hot Spot thermal imaging system.
The allegations prompted swift denials from both teams while the International Cricket Council (ICC) said the claims were incorrect.
However, the ICC confirmed that the Australian inventor of Hot Spot, Warren Brennan, raised concerns with them this week over the effect of bat coatings on the technology.
But ICC umpires manager Simon Taufel subsequently revealed that not a single international batsman has failed a bat inspection for using silicone tape.
Australia's Taufel, a former leading international umpire, said umpires had been conducting about 12 random bat inspections in every Test for three years and not once had silicone tape been uncovered.
Hot Spot has been part of the Decision Review System since 2009 but has come under scrutiny this Ashes after failing to detect several edges.
"During the current Ashes series, the DRS system has been highly controversial with Hot Spot in the eye of the storm," Brennan said in a statement issued Saturday, the second day of the fourth Ashes Test at Chester-le-Street.
"Our technology has been criticized for fine edges that have gone undetected. More than anyone else, BBG Sports (Brennan's company) wanted to know why.
