What were the events that led to the Maria Hertogh riots of 1950(Daniel)

Maria hertogh was a girl which was born on march 24th 1937. When world war two broke out,her father was captured by the japanese and during that time,her mother gave birth to a sixth child.Maria had no choice but went to live with Aminah binte Mohammad a good friend of Maria's mum.When world war two ended,Sergeant Hertogh was released and returned to Java, where he reunited with his wife.They then started looking for their lost child,with the help of the Red Cross Society, the Indonesian Repatriation Service,4 years later the found the kampung where maria and her foster mum lived.But 4days after winning the appeal,Maria was married to a malayan born guy named Mansoor Adabi who was 22 years old and this marriage could have been a manoeuvre by Aminah to prevent further attempts by the Hertoghs to get back their daughter as when the couple never consummated their marriage.One day after the marraige,Aminah received a lawyer's letter from the hertogh's demanding the return of Maria by 10th of August without fail,if not legal actions would be taken.But Aminah ignored the deadline but the Hertogh's did not and on the 20th of November, Adeline Hertogh travelled down to Singapore to attend the hearing of this case and the judge held the marraige as invalid because of Maria's country of domicile was, by law that of her natural father, i.e. the Netherlands. Under the Dutch laws, the minimum age of marriage for girls was 16. The English law applicable in Singapore recognized the marriage laws of the subject's country of domicile and because neither Mansoor, born in Kelantan, could be proved to be domiciled in Singapore nor Maria be considered a Muslim by law,and her father had the rights to contorl Maria's religion and had testified that he would never consent to her conversion to Islam and thus, because of this events the muslims felt that the judge was biased to them and started rioting.