A spate of alleged sex crimes, including two rapes and an assault, is being investigated by military police – at their own training school.

Service detectives are questioning instructors and recruits at the Defence School of Policing and Guarding (DSP G) near Portsmouth, where the incidents are said to have taken place.

Hampshire Police have also been drafted in and defence chiefs have launched a separate internal inquiry into the ‘culture’ at the DSP G facility.

The DSP G provides an introduction to police training for up to 100 Army, Royal Navy and Royal Air Force recruits each year. Pictured above is Southwick House in Portsmouth [File photo]

A number of recruits have been arrested and questioned over two separate allegations of rape and one of sexual assault.

A source said: ‘There is a lot of shock at the base. You get an occasional isolated allegation of this nature at a training establishment, but this is much more serious.’

The DSP G provides an introduction to police training for up to 100 Army, Royal Navy and Royal Air Force recruits each year.

Last night a Ministry of Defence spokesman said: ‘We are aware of the alleged incidents involving Service personnel. These allegations are being investigated.’