"We have received a letter of complaint from the ECB (England and Wales Cricket Board) and we will launch a formal investigation into the exact circumstances surrounding the application of the Decision Review System (DRS) after completion of the Johannesburg Test match," ICC Chief Executive Haroon Lorgat said in a statement on Saturday.
ECB chairman Giles Clarke told the BBC the implementation of the review system was "a shambles", adding: "We're better off with the old system. If the umpire is as blind as a bat, it's the same for both sides."
Clarke complained to the ICC about the system following Friday's third umpire decision not to give South Afican skipper Smith out caught behind.
That was one of several decisions that have upset the tourists and cricket's world governing body said it would look at everything that has happened in the current series with a view to improving it. "There is a large amount of controversy, circulating at present -- so it is important to establish the exact facts before reaching any final conclusions.”
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