www.bbc.co.uk/news/uk-wales-north-west-wales-18469957
The dispersal order says: "If you are under 16 you are not allowed to be here between the hours of 9pm and 6am unless you are under the effective control of a parent or responsible person over the age of 18.
"You may be removed to your home or place of safety if more appropriate."
It will remain in place for six months in a bid to help tackle anti-social behaviour such as groups congregating to drink or members of the public being "harassed, intimidated, alarmed or distressed".
Officers will also be able to order groups of two or more people to disperse.