The decision not to press charges over the deaths of three soldiers who collapsed during an SAS training exercise was correct , prosecutors have confirmed . Edward Maher , Craig Roberts and James Dunsby died of heat exhaustion on the Brecon Beacons after a 40-mile hike as part of a gruelling training exercise in July 2013 . The Crown Prosecution Service were reviewing charges of gross negligence manslaughter but found 'insufficient evidence ' to provide a 'realistic prospect of conviction ' . Corporal James Dunsby was among three soldiers that died after taking part in a training exercise on the Brecon Beacons in July 2013 , when temperatures reached 29C . Lance Corporal Edward Maher , 31 , ( left ) was taken to hospital and Lance Corporal Craig Roberts , 24 , ( right ) died on the mountainside . Prosecutors announced its initial decision not to press charges in July last year , but it is understood they were asked to re-examine the case by two of the soldiers ' families . They were among 100 men taking part in a four-week trial for the Territorial Army 's SAS reservists on Pen Y Fan , when temperatures hit 29C on July 13 , 2013 - one of the hottest days of the year . Lance Corporal Roberts , 24 , of Penrhyn Bay , Conwy , was pronounced dead on the mountainside , while Lance Corporal Maher and Corporal Dunsby , both 31 , were taken to hospital . L/Cpl Maher died three hours later in Merthyr Tydfil 's Prince Charles Hospital , while Cpl Dunsby , from Bath , was transferred to the Queen Elizabeth Hospital in Birmingham and died on July 30 . L/Cpl Roberts , who had served with the TA for more than five years and nicknamed 'CJ ' by family , was a member of the 3rd Battalion Royal Anglian Regiment . He is believed to have served as a reservist in Iraq and Afghanistan and with United Nations peacekeepers in Cyprus . They were taking part in a gruelling selection process for the Territorial Army 's SAS reservists on Pen Y Fan . L/Cpl Maher had served in Iraq and Afghanistan . Edward , known as Eddie to friends , served his country in Iraq and Afghanistan in an elite special reserve unit often behind enemy lines . Cpl Dunsby was a member of the Army Reserves ( The Royal Yeomanry ) . The Brecon Beacons are a notoriously inhospitable area for army training operations and are used by both regular units and the special forces . A spokesman for the prosecution service said : 'The CPS Appeals and Review Unit has completed a review of the case relating to the tragic deaths of soldiers on the Brecon Beacons in July 2013 . 'This review was requested under our Victims ' Right to Review scheme . 'Case reviews completed under the Victims ' Right to Review scheme involve a completely independent assessment of the available evidence against the evidential and public interest standards set out in the Code for Crown Prosecutors . 'In this case , our review concluded that the original decision not to charge any individual in respect of this matter was correct . There is insufficient evidence to provide a realistic prospect of conviction in this case . 'The families involved have been informed of this decision and the reasons for it . Our thoughts remain with them . ' A large amount of detailed material , including reports provided by expert witnesses , was considered during the original review of the evidence , the CPS said . It is believed that two of the soldiers ' families asked for the charges of gross negligence manslaughter to be reviewed . The CPS found 'insufficient evidence ' to provide a 'realistic prospect of conviction ' A Dyfed Powys Police spokesperson said : 'Following a joint police and Health and Safety Executive investigation into the events leading to the tragic deaths of three soldiers on the Brecon Beacons in July 2013 , files of evidence were submitted to the Crown Prosecution Service for review , who concluded that that there is insufficient evidence to support charges of gross negligence manslaughter . 'All families have been informed of the decision and police will continue to support them . 'Police will continue to support the Health and Safety Executive who continue with their investigation into the deaths . A file will be prepared for the coroner . ' An inquest in to the deaths of soldiers was delayed after senior coroner for Birmingham and Solihull , Louise Hunt , ruled last September that a full inquest could not take place until after the CPS review of the deaths . The inquest , expected to last for up to three weeks , was rescheduled to begin on June 1 . It is expected to hear from soldiers who were manning checkpoints at the time of the training exercise and other military personnel involved in its management .
Edward Maher , Craig Roberts and James Dunsby died after overheating . They were taking part in a training exercise on CPS in 2013 . Prosecution service reviewed charges of gross negligence manslaughter . It found there was 'insufficient evidence ' to provide 'realistic conviction '