To deter burglars, mark your valuables with a police-approved forensic solution visible under UV light, and label them with your postcode or address. This makes stolen items easier to trace and harder to sell. Use stickers to warn criminals your property is marked. Register items for free on databases like Immobilise and Bike Register, and record details such as serial numbers and photos. Finally, join your local Neighbourhood Watch to help create a community that looks out for suspicious activity.