"Mummy, what happened?"

Those were the first words uttered by a little girl when she saw her mother wearing a huge bandage around her left wrist and hand.

"How do you tell a five-year-old that mummy was beaten by police?" said Jean McDonald at a press conference Tuesday announcing the launch of a "People's" investigation into the actions of the police during the G20 Summit weekend.

"It's hard to do that in a way that's not going to terrify your child, but is also honest and real and describes what happened."