VANCOUVER -- The RCMP officer who stunned Robert Dziekanski with a Taser the night the Polish immigrant died at Vancouver's airport has entered a plea of not guilty at the start of his perjury trial.

Const. Kwesi Millington was charged along with three other officers for lying at a public inquiry that examined what happened when Dziekanski died at Vancouver's airport in October 2007.

Millington is accused of lying when he recalled what happened, and when he explained apparent discrepancies between what he wrote in his police notes and told investigators and what happened on an amateur video of the incident.

His trial is scheduled to begin in Vancouver, though it has started with an application by Millington's lawyer.

At the start of the hearing, Millington stood as the accusations were read to him, and he responded with a plea of not guilty.

Last year, a judge acquitted Const. Bill Bentley after concluding the Crown had failed to prove he lied at the inquiry or that the officers worked together on a story.