Checkpoint Top Stories for Tuesday 3 February 2015

Key's knowledge of Sabin appears to change, Police shoot dog, Charity investigated over claim it's a front for men's sex club, Mother says Worksafe must do better for grieving families, Pressure mounts on Tony Abbott in Canberra, Firefighters save a fox terrier from the depths of a drain, and Cadbury downsizes its family blocks of Chocolate.