A Labour MP whose term in office has been dogged with controversy will find out tonight if she retains the support of her party's local members.

Anne Moffat is facing deselection as the candidate for East Lothian, just weeks before the country is expected to vote in the General Election.

It follows a series of battles between members of the East Lothian Constituency Labour Party and the MP. They have blasted her record in her constituency and criticised her for becoming embroiled in the MPs expenses scandal while in return, Ms Moffat claims she has been bullied and intimidated.

Last week, Labour's National Executive Committee agreed to allow local members to vote on the MP's future in the region. However, members can only vote on a resolution. Should they decide they want to deselect Ms Moffat, the decision will have be be endorsed by the NEC.

The time frame in which the move would be approved remains unclear, meaning the party could face a last minute selection drama. Insiders say it would be highly unlikely for the NEC to go against the decision of local members. However, even if members voting against Ms Moffat were backed by the NEC, the MP would be able to appeal the decision.

Activists in the region have already signaled they want someone new to fight the seat, which is held by Iain Gray at Holyrood. Labour's leader in the Scottish Parliament is among the members who will vote on Ms Moffat's future at a meeting at Haddington's Knox Academy on Friday night.

The local constituency party was suspended in 2008 after labour bosses ruled a vote of no confidence in the MP out of order. An investigation was launched and both sides of the divide agreed to work together.

However, Ms Moffat's critics now insist she failed to uphold her end of the bargain. They accuse her of failing to turn up to meetings, respond to letters or even vote in the European elections. Ms Moffat insists she has done the job to the best of ability, having suffered from ill health and been hospitalised twice for bleeding on the brain. She also insists that when she did turn up to meetings, she was harassed.

Ms Moffat, who was first elected to serve the area in 2001, gained the support of only two of six branches in the constituency. However, the former Unison official was endorsed as the candidate through votes from union affiliates.

She attracted criticism after claiming almost £40,000 in travel expenses between 2003 and 2004, more than any other MP. That year, her expenses were £148,818, putting her in the top ten claimants in the UK. More recently, she became embroiled in the MPs expenses scandal. In February, Sir Thomas Legg ruled Ms Moffat should pay back £2,873.53 for various claimed items, including a Sky TV package.

It remains unclear who would stand for Labour in East Lothian if Ms Moffat was deselected. The party says there would be an all-female shortlist, but no candidates will confirm their interest ahead of Friday's meeting.