I've been thinking about this since the other day. On the Baby P thread many poster's were saying that if Tracy were to get pregnant again then the baby would be removed at birth.
However I cannot help but think that the more sensible option would be to not release her until she agrees to be sterilised?
This may seem cruel, however she has unfortunately proven that she is not capable of looking after a child. Any child she brings into the world will be taken into the care system, where there are already thousands of children needing a home.
Unfortunately there is no perfect way to deal with a case like this. You will get criticism whatever your opinion. However I feel that this would be the kindest option for all involved.