This is a very special moment of any of our events is when the wrongly convicted are introduced.

Being led by Rory Guest and Phael.

I'm standing in a large room in downtown Toronto.

A group of men and women are being piped in.

They have one thing in common.

Each was convicted of a crime they didn't commit.

They served years, decades, in prison.

One by one, they take their place in front of an audience of family members, lawyers, and friends,

their advocates, who never gave up pleading their innocence.

This is an annual event held by Innocence Canada.

Since 1993, they've helped exonerate 30 people. In most cases,

it was a murder conviction. I wasn't quite sure what to expect. There was a bar, snacks, name tags on

people milling around like any cocktail party. The exonerated, as they are called,

I couldn't take my eyes off of them.

Some had a hollow, haunted look.

Others you'd pass on the street and not have a clue.

All in all, I found it a lively, moving, hopeful event.

James Lockyer, one of the best known lawyers in Canada, is a founding member.

And it really has two purposes. To try and uncover wrongful convictions that have already

occurred, to prevent them happening in the future as much as we can.

To help you understand more about the case of Chris Sheriff, we're doing a number

of bonus episodes expanding themes in the series. Today, it could happen to you when the justice

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