Are you Worried About the Content Copied by Others then Google is here to help you out. Yes With copy right issues you can contact Google in this Help Center Follow the Steps Given on this Link. By Following all the Links you can Complaint Against The Other Blogger Who has stolen your content or material.
First Contact your self in personal way to that blogger. Request them to remove your content from their blog or put a link giving full credit to you for the work you have done. If they don't reply your request then follow the step given in the above mentioned help center.
Inside AdSense: My content, your content, other people's content