District police chief Asst Comm Ismadi Borhan said an arrest was made on Monday (June 10) on the 49-year-old suspect at Bandar Kinrara 5.
"Checks at the house along Jalan Pinggiran Putra also led to the discovery of the spoon used to abuse the victim.
"The suspect confessed to the act and will be remanded today," he said in a statement on Tuesday (June 11).
The victim, who was staying with the suspect, was physically abused after being accused of stealing money in the 6pm incident on May 30.
She sustained burns on both sides of the cheek, hands, right waist and left leg from the hot spoon that was used. The suspect fled after giving the child some oil to apply on the affected spots.
ACP Ismadi said the seven-year-old victim was still undergoing treatment at the Serdang Hospital.
He added that her nine-year-old sibling would also be sent to the hospital for checks.
Her 25-year-old adoptive mother, who was away in India at the time, lodged a police report upon her return on Sunday (June 2).
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