Criminal-law experts say the 10-year-old girl who brutally attacked a toddler in an elevator in Chongqing should be sent to a juvenile detention center to undergo rehabilitation.

Chongqing police said on Friday that they could not file criminal charges against the girl because she is a minor. The girl recently moved to the Xinjiang Uygur autonomous region with her mother, who made a job transfer to the region on Dec 2.

By law, children younger than 14 years old are shielded from criminal responsibility. The law stipulates that parents and guardians are obligated to discipline them.