Dispersal orders are being introduced in three areas of Derby in a bid to tackle anti-social behaviour.
The orders - made by police and the Derby Community Safety Partnership - cover Markeaton Park, as well as the Mackworth and Morley estates.
They give officers the power to move on groups of people if they think they are acting in an anti-social manner.
A Derbyshire Police spokesperson said the orders were necessary to protect residents' quality of life.
The orders will run for six months and those who ignore them by returning to the area can be arrested.
Insp Rachel Walker said: "This is not a measure we introduce lightly but we feel it is necessary to help to ensure that the majority of people can go about their business in safety and confidence.
"We will be enforcing the order and dealing positively with those who are found in breach of it."