A dispersal order has been set up as part of efforts to control anti-social behaviour in a Nottinghamshire town.
Police in Harworth said the move was a response to persistent issues on the Dorchester Road estate.
Officers have the power to move people on and prohibit them from returning for a set amount of time. Children under 16 without an adult face a night curfew.
The police team said it hoped this would reduce problems with intimidation and criminal damage.
The order will be in force until February 2011.
Beat manager Sgt Tony Crofts said: "I must stress that the overwhelming majority of the young people we have had to speak to about this do not live on the estate, but choose to gather there.
"It is reasonable for people to expect a safe, non-intimidatory environment in which to live, and we will do what we can to ensure that."
Anyone failing to comply with directions issued under the order may be prosecuted under the Anti-Social Behaviour Act, which can result in up to six months in prison or a fine of up to £5,000, he added.