An influential group of MPs has launched a scathing attack against the head of Britain's tax office for her "catastrophic leadership failure" when she was in charge of the country's border controls.
The Home Affairs select committee said it was "astounded" that Lin Homer was promoted to the £180,000-a-year role of chief executive of HM Revenue & Customs (HMRC) after her performance during the five years she spent at the top of the UK Border Agency (UKBA).
But Ms Homer said it was "unfair" to blame her for matters that occurred after she left the Agency.
The case against Ms Homer's current appointment was made as the committee warned at the current rate of progress it would take 24 years to clear through a backlog the size of the population of Iceland of asylum and immigration cases at the UKBA. The report said: "It is shocking that after five years under Lin Homer's leadership an organisation that was described at the beginning of the period as being 'not fit for purpose' should have improved its performance so little."
The current UKBA chief executive - Rob Whiteman - is also criticised for failing to inform the committee that the agency had supplied parliament with incorrect information since 2006. The report said: "This in our view is unacceptable and undermines Mr Whiteman's claims to take the provision of accurate information to the committee seriously."
In its report into the work of the UKBA between July and September last year, the committee said four new types of backlog came to light, taking the total number of cases to 312,726. The committee concludes that for six years the UKBA "repeatedly supplied it with incorrect information" about the size of the asylum backlog and the checks being carried out to try and trace applicants in the controlled archives.
Its report said Ms Homer "continues to try and evade responsibility for her failings" and calls for a stronger role for Parliament when civil servants are being scrutinised for senior positions. It added: "The status quo, in which catastrophic leadership failure is no obstacle to promotion, is totally unacceptable. We recommend that in future any failures of this nature should have serious consequences for the individual's career."
Ms Homer has already written to the committee in response to their allegations, as much of the difficulties described in its report came some 18 months after her departure. She said: "It is therefore wholly inaccurate and unfair to seek to ascribe responsibility to me for matters of concern that occurred long after I left the agency."
The HMRC said under Ms Homer's leadership, the department is likely to beat targets by more than £1 billion and has improved the rate of answered calls from 66% to 90%.
Exchequer Secretary to the Treasury David Gauke said: "Under Lin Homer's leadership, HMRC has built on the good work already going on in the department, becoming increasingly effective at tackling evasion and avoidance, improving its customer service and delivering substantial efficiencies. She is a highly effective chief executive and the right person to lead HMRC."