Using Criminal Justice databases in CSUs Galileo, or any other library resource, look for literature on the implementation of the concept of Community-Oriented-Policing. Locate four sources with the following specifications:

• Two sources must address the concepts history, purpose, or goals.
• One source must address the scope of the problem it is trying to fix.
• One source must be an empirical study evaluating the concepts effectiveness.

Describe the research strategy you used to find the sources and summarize, in your own words, the key ideas in each one of the documents.