Paul Cowan there are many many many different things that allow the state to step into a family in the West. All you need is a complaint from the biological father, grandmother, teacher, person next door, milk man, you name it. And I made that statistic up based on the number of supposed child abusers in general. I don't think they've broken down the figures into biological parents & step parents. Now I've actually looked and here's the stats. The percentage of children murdered by their step parents in Canada is significantly lower then by biological parents and is actually on par with the number killed by siblings and OTHER family members, http://www.canadiancrc.com/Child_Abuse/Child_Abuse.aspx and the actual number of substantiated abuse claims in Canada is 9.71 %