A retired warrant officer in Manitoba has pleaded not guilty to six charges stemming from a deadly training accident in Afghanistan.
Paul Ravensdale is accused of manslaughter, unlawfully causing bodily harm, two counts of breach of duty and two counts of negligence.
He is charged in a February 2010 accident that injured four soldiers and killed Corporal Josh Baker.
Mr. Ravensdale appeared in civilian clothes at his court martial at CFB Shilo and said "not guilty your honour" to each of the six charges.
Mr. Ravensdale's court martial is expected to last three weeks.
Two other officers have been convicted in the accident.
Major Darryl Watts is awaiting sentencing on charges of negligence and unlawfully causing bodily harm.
Maj. Christopher Lunney was demoted to captain and given a severe reprimand after pleading guilty to negligent performance of duty.