CALGARY - The fate of a Canadian reservist charged in a fatal training accident in Afghanistan has been placed in the hands of a military jury.

Maj. Darryl Watts, 44, faces charges that include manslaughter, unlawfully causing bodily harm, breach of duty and negligent performance of duty.

Cmdr. Peter Lamont, the military judge overseeing the court martial in Calgary, delivered a two-hour charge to the five-member jury panel late Saturday afternoon.

"The time has come for you to make your finding," said Lamont.

"You have now heard all of the evidence. In every court martial there are two judges. I am one — you are the other," he said.

"You are the judges of the facts. You — not I — will determine the evidence in this case."

Cpl. Josh Baker, 24, died and four other soldiers were injured when a Claymore anti-personnel mine, packed with 700 steel balls, peppered their platoon on a training range near Kandahar city in February 2010.

The Crown argues that Watts, who was the platoon commander, turned a blind eye to safety standards and abdicated his duty as a leader during the exercise.

"Maj. Watts, being the platoon commander having ordered his platoon onto that range, is responsible for the conduct of the range," said senior prosecutor Maj. Tony Tamburro in an interview with reporters Saturday.

"He can delegate certain tasks to his subordinates but he still remains accountable for the way those tasks are performed."

The defence counters that Watts had no training on the Claymore, so he handed over responsibility for safety to his second-in-command, who was an expert on the weapon.

Cmdr. Lamont told the panel it had to be sure within a reasonable doubt that Watts was guilty of the charges he has been charged with and that every person charged with an offence is presumed to be innocent.

"You must find the accused innocent of the offence unless the prosecution proves it beyond a reasonable doubt," said Lamont.

The platoon, which was stationed at Camp Nathan Smith in Kandahar city, usually visited the Kan Kala firing range about once a month.

The day of the accident the range was divided into four training sections.

The first two tests of the anti-personnel mine went off without a hitch. But when the second firing occurred, the ball bearings fired backwards, hitting Baker and four others.

Videos of the accident show several soldiers, including Watts, standing around watching the tests. They were not inside armoured vehicles or standing behind them for cover, as set out in Canadian Forces safety guidelines.

Maj. Tamburro acknowledged that it was a difficult case to prosecute.

"Negligence cases are always somewhat difficult because we're not alleging crimes of intent here. No one has ever alleged that Maj. Watts intentionally harmed anyone or killed anyone," Tamburro said.

Cmdr. Lamont also warned the jury not to go beyond deciding the guilt or innocence of the accused.

"Punishment has no place in your discussion or in your decision," said Lamont.

"It is my job — not yours — to decide what kind of punishment is appropriate."

Also on HuffPost:

Loading Slideshow...
  • A member of the armed forces forms inspects wreaths ahead of a Remembrance Day dawn service at Prospect Cemetery in Toronto, on Sunday November 11, 2012. THE CANADIAN PRESS/Chris Young

  • People gather around the war monument during a Remembrance Day ceremony in downtown St. John's, NL, Sunday, Nov. 11, 2012. THE CANADIAN PRESS/Jonathan Hayward

  • Veterans salute as they take part in the National Remembrance Day ceremony in Ottawa Sunday, November 11, 2012. THE CANADIAN PRESS/Fred Chartrand

  • The Canadian flag is lowered to half mast during a Remembrance Day dawn service at Prospect Cemetery in Toronto, on Sunday November 11, 2012. THE CANADIAN PRESS/Chris Young

  • Prime Minister Stephen Harper walks with Hong Kong Veteran Arthur Kenneth Pifher, 91, of Grimsby, Ont., as they take part in a Remembrance Day ceremony at Sai Wan War Cemetery in Hong Kong on Sunday, November 11, 2012. THE CANADIAN PRESS/Sean Kilpatrick

  • A wreath sits infront of a military gravestone in the National Military cemetary in Ottawa, Friday November 9, 2012. THE CANADIAN PRESS/Adrian Wyld

  • Service medals are seen on Australian retired General Peter Congrove, of NSW Centenary of Anzac Advisory Council Chair, during the Remembrance Day ceremony held at the cenotaph in Sydney on November 11, 2012. Remembrance Day marks the anniversary of the armistice which ended the First World War (1914–18) and in memory of those who died or suffered in wars and armed conflicts. AFP PHOTO/ROSLAN RAHMAN (Photo credit should read ROSLAN RAHMAN/AFP/Getty Images)

  • A woman places a poppy flower on the cenotaph during Remembrance Day in Sydney on November 11, 2012. Remembrance Day marks the anniversary of the armistice which ended the First World War (1914–18) and in memory of those who died or suffered in wars and armed conflicts. AFP PHOTO/ROSLAN RAHMAN (Photo credit should read ROSLAN RAHMAN/AFP/Getty Images)

  • Wooden crosses bearing pictures of fallen servicemen and women and messages from their loved ones are planted in a memorial field at Saltwell Park in Gateshead, north-east England, on October 29, 2012 ahead of Remembrance Day (Armistice Day) on November 11. AFP PHOTO/PAUL ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)

  • Wooden crosses bearing pictures of fallen servicemen and women and messages from their loved ones are planted in a memorial field at Saltwell Park in Gateshead, north-east England, on October 29, 2012 ahead of Remembrance Day (Armistice Day) on November 11. AFP PHOTO/PAUL ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)

  • An Israeli soldier stands in front of a wall of names memorial to fallen soldiers at the Armored Corps memorial, following a ceremony to mark Remembrance Day, or Memorial Day at Latrun Junction, near Jerusalem on April 25, 2012. Remembrance Day is followed immediately by the 61st anniversary of the creation of the State of Israel. AFP PHOTO/JACK GUEZ (Photo credit should read JACK GUEZ/AFP/Getty Images)

  • King Albert II of Belgium salutes during the commemoration of World War I (1914-1918), commonly known as Remembrance Day, at the tomb of the Unknown Soldier, in Brussels, on November 11, 2012. AFP PHOTO / BELGA / BENOIT DOPPAGNE (Photo credit should read BENOIT DOPPAGNE/AFP/Getty Images)

  • AUCKLAND, NEW ZEALAND - NOVEMBER 11: Camilla, Duchess of Cornwall meets with New Zealand war veteran Staff Sgt Kirsty Meynell after the Armistice Day Commemoration at the Auckland War Memorial on November 11, 2012 in Auckland, New Zealand. The Royal couple are in New Zealand on the last leg of a Diamond Jubilee that takes in Papua New Guinea, Australia and New Zealand. (Photo by Ross Setford-Pool/Getty Images)

  • A US citizen carries wreath as he walks past walls where 36,286 names of missing are inscribed at the US cemetery and memorial during the Veterans Day memorial in Manila on November 11, 2012. The US cemetery contains the remains of 16,631 Americans who died in the Pacific, China,India, and Burma theaters of war. AFP PHOTO/TED ALJIBE (Photo credit should read TED ALJIBE/AFP/Getty Images)

  • AUCKLAND, NEW ZEALAND - NOVEMBER 11: Prince Charles, Prince of Wales greets war veterans and members of the public following Armistice Day commemorations at the Auckland War Memorial Museum on November 11, 2012 in Auckland, New Zealand. The Royal couple have arrived in New Zealand on the last leg of a Diamond Jubilee that takes in Papua New Guinea, Australia and New Zealand. (Photo by Phil Walter/Getty Images)

  • A US soldier carrying the US national flag stands at attention during the Veteran's Day commemoration at the US cemetery in Manila on November 11, 2012. The US cemetery contains the remains of 16,631 US citizens who died in the Pacific, China, India, and Burma theaters of war. AFP PHOTO/TED ALJIBE (Photo credit should read TED ALJIBE/AFP/Getty Images)

  • Chelsea Pensioners march past the Cenotaph during Remembrance Sunday service in Whitehall, Central London, on November 11, 2012. Services are held annually across Commonwealth countries during Remembrance Day to commemorate servicemen and women who have fallen in the line of duty since World War I. AFP PHOTO/CARL COURT (Photo credit should read CARL COURT/AFP/Getty Images)

  • FORT WILLIAM, UNITED KINGDOM - NOVEMBER 11: Servicemen and women join veterans as they attend a remembrance Sunday ceremony at Commando Memorial on November 11, 2012 in Spean Bridge, Scotland. Remembrance Sunday tributes were carried out across the nation to pay respects to all who those who lost their lives in current and past conflicts, including the First and Second World War . (Photo by Jeff J Mitchell/Getty Images)

  • BRUSSELS, BELGIUM - NOVEMBER 11: King Albert II of Belgium meets with war veterans during a tribute to the unknown soldier on November 11, 2012 in Brussels, Belgium. (Photo by Mark Renders/Getty Images)