Customers often ask me what’s the best way to protect their homes alongside upgrading their locks on doors and windows. Another way is to get Smartwater! When an intruder comes into contact with Smartwater, it leaves a DNA code on them that is connected to your property. If they are then caught with it on them, there is no way they can say it wasn’t them !!!!!! Job done. For more information call Mark @ Secure Locksmith Cheltenham anytime.