He stepped down in June 2012 following a long-running dispute,[1] becoming Director of the Centre For Enterprise, Markets and Ethics.
He served as assistant curate of Christ Church, Portswood (1994–1998) and vicar of Chineham (1998–2005).
Turnbull has also been a member of the General Synod of the Church of England (1995–2005), chairman of the Business Committee of the General Synod (2004–05) and chairman of working parties that produced reports on clergy pay and funding a theological education.
He was a member of the Archbishops' Council of the Church of England (2003–2005) and chairman of the House of Clergy of the Diocesan Synod of the Diocese of Winchester (2000–2005).
In 2007, Turnbull controversially told a conference that 95% of Britons would go to hell unless the message of the gospel was brought to them.