Labour MP Kevin Brennan used a short Westminster Hall debate on 19 July 2011 to highlight concerns over the functioning of the Public Guardianship Office.
The office is an agency in England and Wales that supports the Public Guardian in the registration of Powers of Attorney.
It is designed to protect people who lack the mental capacity to make decisions for themselves and works to ensure that allegations of abuse are fully investigated.
The office helps attorneys and their deputies carry out their duties.
However Mr Brennan said there were issues over the abilities and performance of certain deputies.
He was supported by Labour's Julie Morgan who claimed there was a "lack of confidence and lack of awareness" in the office.
It was introduced under the Mental Capacity Act 2005 and is supported by a Court of Protection, which settles any disputes concerning those with mental illness
Justice Minister Crispin Blunt said people were able to raise concerns about the office in confidence and that the office had "a well established whistleblowing" procedure.