The Times Colonist has been following an interesting case. Victoria police stopped a driver, in case, they said, his car was stolen.
He was difficult. They arrested him and searched his van. He had the audio record function running on his Palm Pilot during the arrest and while they searched the vehicles as he sat, handcuffed, in the back seat of the police car.
But police didn't know that until after the arresting officer had testified at the man's trial for obstructing justice.
The recording was played by defence lawyer Doug Christie (yeh, that guy). The Crown dropped the charges.
The report is here .
Click on the link to transcript of trial on the right to see what happened.
It suggests, sadly, real grounds for concerns about court cases decided on the basis of police testimony.