A magistrate has ordered welfare officers to check on a 12-year-old boy whose father appeared in Tsuen Wan Court yesterday charged with murdering the boy's mother, Lok Yuk-kuen, 40, on April 24. Transport worker Du Yanchan, 39, did not enter a plea. He expressed concern that his son was unattended. Magistrate Sham Siu-man ordered welfare officers to check on the boy. A Social Welfare Department spokesman said relatives were taking care of him.