Beat ‘2 in 1’ burglaries It’s becoming more and more common for thieves to ‘fish’ out keys through a letterplate to gain access to a property or vehicle. This type of crime is better known as ‘key fishing’ and is a growing threat. To avoid becoming a victim there is one simple thing you can do…invest in a letterplate restrictor. Yale’s letterplate restrictor prevents theft by reducing the opening of the letterplate to stop would-be criminals from inserting tools in an attempt to retrieve possessions from the home. The letterplate restrictors can be adjusted from full closure to part restriction or full opening, depending whether you’re at home or away. They are also really useful to prevent vandalism as they stop unsolicited door drops being pushed through your front door.