As per POCSO act, child was brought for age estimation. Xray wrist taken. The maximum age of the wrist joint is:

The POCSO Act defines a child as any person below the age of 18 years and provides protection to all children (both males and females) under the age of 18 years from sexual abuse. Ossification Centres of Carpal Bones: Capitate: 1-3 months Hamate: 2-4 months Triquetrum: 2-3 years Lunate: 2-4 years Scaphoid: 4-6 years Trapezium: 4-6 years Trapezoid: 4-6 years Pisiform: 8-12 years Capitate is the first one andPisiformis the last one to ossify. Base of 1stmetacarpel is not fused with the shaft which means age is <15 years. Pisiform has not apppeared so the age is less than 12 years.