A week or so ago reports of a "new" Canadian case circulated on Facebook and fathers groups about a mother who lost custody for alienating a father along with criticism that the courts in the UK do not recognise Parental Alienation. This is in the run up to Parental Alienation Awareness Day in April. The case was reported by the Toronto Star here in 2009 and I can only assume it was meant the story had just come to the notice of fathers groups and parental alienation campaigners.
It isn't true that courts in the UK don't recognise Parental Alienation. There have been a number of cases where the courts have recognised PA when it has been supported by evidence from expert witnesses, but of of course children resist contact for may reasons and there is no general agreement yet about Parental Alienation. Nick Child, family therapist and retired psychiatrist summarises the current thinking about PA here.