The authorities has formally launched an impartial investigation into how terror suspect Daniel Khalife was in a position to escape from Wandsworth jail.

The investigation will have a look at a number of points together with whether or not the related protocols had been in place and utilized appropriately, whether or not there was adequate staffing and whether or not Khalife was held in the proper class of jail.

Keith Bristow QPM, former director basic of the National Crime Agency, has been appointed to steer the investigation.

Justice Secretary Alex Chalk confirmed the appointment on Twitter and that he needed the findings to be printed "promptly".

Khalife, a former soldier, is suspected to have escaped from Wandsworth prison on 6 September by strapping himself to the underside of the truck to make his escape.

He had been working within the jail kitchen and was sporting a prepare dinner's uniform when he disappeared.

His escape prompted a 75-hour manhunt earlier than he was ultimately arrested and recaptured in a west London suburb.

Earlier this week Khalife appeared in court charged with escaping from lawful custody on 6 September. He is accused of utilizing bedsheets to strap himself beneath the meals truck to flee from the class B jail.

Sky News understands he's now being held at Belmarsh, a class A jail.

In the phrases of reference for the investigation, printed by the Ministry of Justice (MOJ), Mr Bristow will likely be requested to contemplate, amongst different issues:

• Whether the related protocols had been in place at Wandsworth and there was the means to use them

• Whether there was adequate staffing in place

• Risk assessments and selections about employment within the jail

• How Khalife was in a position to entry the supplies that facilitated his escape

• Security measures together with checks on the supply car that he used for his escape

Read extra:Daniel Khalife's 75 hours on the run - key timings and sightings before terror suspect's arrestDaniel Khalife was caught 'on a push bike' by a plain-clothes officer

In his earlier roles Mr Bristow was the previous head of crime for the Association of Chief Police Officers and former Chief Constable of Warwickshire Police.

When he completes his report it is going to be despatched to Mr Chalk and the main civil servant on the MOJ, Antonio Romeo.

The MOJ stated: "Public protection is of the utmost importance and the purpose of the investigation is to identify shortcomings and ensure lessons are learned to help prevent incidents of this nature occurring again in the future."