My front door has a deadbolt, but right next to the knob/deadbolt is a tall narrow window, so that you can see whoever is outside. This is a security risk as anyone could smash that window and open the lock from the outside.
Is there a way to secure a door like this, without removing the window? The one idea I know if is a deadbolt where you need a key to open it even from the inside, but I don't think our code allows this for the front door.
Best Answer
There is a product called Window Security Film which is a thin (a couple mm) film that adheres to the window and makes it exceptionally difficult for someone to break. Many lock smiths/security companies can install it. Here's a video of it in action: http://www.youtube.com/watch?v=vYdVK3BqPfk
This is a duplicate of my answer from this question.