Derry and Strabane police have seized 3 scramblers over a 24-hour period.
They are said to have been used in a ‘dangerous manner’ in Galliagh.
The PSNI have warned that is illegal to use scramblers on public green areas.
They say to ride on a road you need a driving licence, insurance, tax and the vehicle must be registered with the DVLNI and display a number plate.