<Tr> <Td_colspan="2"> Official website </Td> </Tr> <P> Hertfordshire Fire and Rescue Service (HFRS) is the statutory fire and rescue service for the county of Hertfordshire, England . The county consists of 634 square miles and a population of over 1.1 million . </P> <P> The Service Headquarters is located in Hertford whilst the Training and Development Centre and Fire Control Centre are located in Stevenage . It is administered by a Fire Authority which is an internal part of Hertfordshire County Council . The Chief Fire Officer is Darryl Keen, assisted by Deputy Chief Fire Officer Chris Bigland . </P> <P> In December 2005, the service dealt with what is thought to be the largest fire since World War II following an explosion at the Buncefield oil depot near Hemel Hempstead . The incident saw a large scale national response involving many UK fire services . </P>

Hertfordshire fire and rescue service chief fire officer