Megan Pullum QC took up the post and that of HM Receiver General on 3 October after four and a half years as HM Comptroller.
'I feel it's a privilege to be the first woman in the role, but I don't think gender makes any difference to how the job should be carried out,' she said.
Advocate Pullum, who comes from Sawbridgeworth, Hertfordshire, qualified as a solicitor of the Supreme Court of England and Wales in 1996. She has been involved with governmental legal issues for almost 25 years – about 14 of them in Guernsey.
A previous appointment as a UK government lawyer led to time working in Brussels on EU issues.
She said there was increasing global pressure on the Bailiwick with the likes of Brexit, which was something that touched on it both constitutionally and in the EU field as well as other international and regulatory pressures.
'I can understand why the UK might not be able to say everything we might like in relation to Brexit now and we have to be prepared to do some last-minute work,' she said.