'We can take hold of you, we can detain you': Police warn 'screaming' parents that children can be restrained

It comes after a 16-year-old boy was left in hospital with multiple stab wounds

'We can take hold of you, we can detain you': Police warn 'screaming' parents that children can be restrained
It comes after a 16-year-old boy was left in hospital with multiple stab wounds