The Cabinet Secretary Sir Jeremy Heywood was criticised earlier this week by MPs on the Public Administration Committee for his investigation into former chief whip Andrew Mitchell's row with Downing Street police officers.
Sir Jeremy was not the "appropriate figure" to carry out such an inquiry and his role as an "impartial investigator" was compromised, The Commons Public Administration Committee said.
More top news
Firms that fail to address the pay gap between male and female employees with be listed in new league tables.
John Kerry says US and Russian diplomats have agreed to implement a "cessation of hostilities" in Syria
A young man dramatically rescued by the Turkish coastguard from a sinking boat has spoken of his ordeal.