The chief instructor of an an army reserve unit during the SAS selection march in which 3 men died, has told their inquest he was unaware of military guidelines on heat related illness.
The official guidelines state that all activity must be suspended if anybody becomes incapacitated due to heat injury.
ITV News Wales & West of England Correspondent Rupert Evelyn is at the inquest:
NEW: SAS test chief unaware of flowchart (jsp539) which coroner quotes as saying "if you have a case of heat injury you stop the activity"
On the day the 3 men died in July 2013 at least 12 men suffered heat related illness but no order was given to call off the march.
Families of three soldier who died during an SAS exercise in 2013 told an inquest about the men and how they found out about the deaths.
GPS details show what happened and when to three soldiers who died in 2013 while on a long march as part of the SAS selection process.