I knew there was a final point (I'm being banned soon so I wanted to get this last one in).
The reason behind some of the tension in the system - or one of the reason - particularly with child access issues between a muslim parent and non muslim parent is partly due to history.
Wiki sums it up best;
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The Maria Hertogh riots or Nadrah riots, began on 11 December 1950 in Singapore after a court decided that a child who had been raised by Muslims should be returned to her biological Catholic parents. A protest by outraged Muslims escalated into a riot when images were published showing 13-year-old Maria Hertogh (or Bertha Hertogh) kneeling before a statue of the Virgin Mary. Rioting in Singapore lasted till noon on 13 December 1950. In total 18 people were killed and 173 injured. Many properties were also damaged.
Hertogh (also known as Nadrah) had been in the care of Aminah binte Mohamed before being returned to her biological Dutch Catholic parents.
http://en.wikipedia.org/wiki/Maria_Hertogh_riots