I have today written to the Co-op head office to see if they are willing to buy one of these Mosquito Devices. You can get all the detail by following this link:
But basically they omit a tone that only teenagers can hear that makes it uncomfortable to hang around. They are not on permanently and adults cannot hear it. So it is an ideal solution to disburse young people hanging out around the shopping area of Wesham.
If you have any views on this, please get in touch. I’ll let you know what the Co-op says.