Justink

Hi, I am not sure if this is the right place to post this question. I have been trying to research this and it seems impossible to find the answer to what I think would be a very popular problem. - I will describe the situation so that it is clear. I have many cameras throughout my business - hotel , restaurant , boutiques. We are able to get very clear video for play back. However, if for example, a thief comes and I want to give a still photo to the police that can be used to identify someone ( a clear picture of their face) I cannot. I have talk to a few experts, upgraded my system and cameras. I have close ups in good lighting where the camera is 36 inches from someone face but pictures are never that clear although the video is great.. Do I need to just set up a regular camera on a movement detector to get good stills.? Should an IP system with an 8 mp camera do this? thanks very much for your help.