Section 25(2)(b) in Tamil Nadu Juvenile Justice (Care and Protection of Children) Rules, 2017
(b)Place of Safety (for children in conflict with law).-(i)a separate place of safety shall be provided for children in conflict with law according to their age and the nature of offence;(ii)classification and segregation of children shall be made in the age groups 16-18 years and 19-21 years;(iii)children alleged to have either committed or been party to heinous crimes shall be provided separate accommodation within the home.