northern territory 's chief minister adam giles issued harsh warning .
minister for children and families john elferink also made the threat .
they say children who throw rocks at police will be taken into care .
` parents should not doubt our resolve to do this , ' mr giles said .
nt police have seen a recent rise in youth crime in alice springs .
on monday 50 young people threw ` large rocks ' at police .
by wednesday night , however , there was no rock throwing reported .
police explained to daily mail australia it was not a ` regular occurrence '
no police officers have been harmed during the rock throwing .