It was reported earlier this week that Southampton's officers had started using DeterTech’s SmartTag spray. This can be fired from a handheld canister over distances of up to 10 metres, coating riders, clothing and bikes with an invisible marker. READ MORE: Oxfordshire shop to permanently close with all products now £1Thames Valley Police has told this newspaper this week that a second spray is being used in Oxfordshire and across the region. The DNA tagging spray from SelectaDNA acts in a similar way and is also being used to combat e-bikes and e-scooters. TVP, which covers Oxfordshire, Buckinghamshire and Berkshire, has already seized more than 100 illegal machines in recent operations and warned that privately owned e‑scooters used on public roads risk fines, penalty points and confiscation.