Judith Collins' resignation yesterday was weeks, perhaps months, overdue. Yet the offence for which she has left the ministry is less clearcut than the list of misjudgments and economy with the facts that made her a liability to the National Party.
She has gone because her friend the blogger Cameron Slater, in a 2011 email to third parties which was given to the Prime Minister's office on Friday, claimed Collins was "gunning" for then Serious Fraud Office chief executive Adam Feeley and was seeking information on him to put before the State Services Commission.
According to Slater, this was a result of a push by himself and others to discredit Feeley. He claims to have spoken to Collins and "any information we can provide her on his background is appreciated". One of the email recipients is believed to be Carrick Graham, a public relations man at the time for Mark Hotchin and Hanover Finance, a failed finance company.
Collins was the minister responsible for the Serious Fraud Office, so it is highly inappropriate if she did indeed share any views on Feeley with a blogger who would be capable of sharing them with someone associated with a company then under inquiry by the SFO.