The Welsh Assembly has announced that officers will be looking into allegations that Monmouth AM Nick Ramsay was drunk in a meeting at the Senedd this week. In a video available on Senedd TV, the Conservative AM Nick Ramsay was seen speaking during a mental health debate, which spurred one Cardiff constituent to write to his AM Julie Morgan complaining that he felt Mr Ramsay was drunk. The letter claims that Mr Ramsay's contributions were "slurred, incoherent and insolent," and since then a formal complaint has been put forward to presiding officer Rosemary Butler. A spokesperson for the assembly said, "The presiding officer has received a letter of complaint relating to the behaviour of an individual Assembly Member in the plenary session on 10 June. "Regulation of plenary proceedings is a matter for the presiding officers. They will be looking into the circumstances thoroughly and properly over the coming days. "The rules of debate are governed by Standing Order 13 and the Assembly Members' Code of Conduct sets out the standard of behaviour expected from members during assembly business. Members must at all times in their conduct promote respect for the assembly and extend respect and courtesy to other members." Mr Ramsay, who was 39 on Tuesday, has denied the claims that he was drunk, but agreed that the claim should be taken seriously and said there will be talks with Rosemary Butler to address the complaint. A Welsh Conservative spokesman said, "Nick Ramsay was making valid contributions in an important debate on mental health. He agrees that all correspondence from the public should be treated with the utmost importance – and will speak to the presiding officer accordingly." It is not the first time the Monmouth AM has found himself in hot water - three years ago he was forced to apologise after being banned from The Nags Head in Usk following a dispute with the quiz-master at a charity pub quiz. While he later claimed he was only engaging in banter, he apologised for any offence caused. In July 2012 he was criticised by fellow AMs after missing a meeting of a committee he chaired after being taken ill the night before while just five months in later, he attracted futher criticism by being more than an hour late for a meeting of the same committee. In 2011 he lost out to Andrew RT Davies when he ran for the leadership of the Conservatives in the assembly and earlier this year said he was 'baffled' to learn that he had lost his front bench role as shadow business minister - and chair of the enterprise and business committee - in what he later described as an 'old fashioned coup'.