26-year-old Jeraj Puvaneshen, a former school cricket coach, admitted to helping two of his assistant coaches, both also Indian-origin sisters, with housebreaking in May 2012 and a count of disposing stolen items in December 2009, the Channel News Asia reported.
Two other charges of disposing stolen properties worth more than 5,000 Singapore dollars in May 2012 were taken into consideration for sentencing purposes.
At the time of the offences, Puvaneshen was teaching cricket at St Andrew's Secondary and St Andrew's Junior College, two of premier schools in Singapore.
The Pasupathy sisters got Puvaneshen to bring the cricket team boys, including the victim, for a run outside the school at about 2pm. The two sisters went on to steal over 20,000 Singapore dollars worth of gold jewellery and other items from the boy's house, using keys stolen from his bag.
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Prosecution pointed out that Puvaneshen was a teacher and he had abused the trust placed in him.
District Judge Low Wee Ping agreed with the prosecution's call for a deterrent sentence of 15 months' jail.