Quotation marks would only have to be used on thoughts if the<br />thoughts were someone else's. If the thoughts came from a book, computer source, or some other source, then quotation marks should be used. However, the writer of the essay does not have to quote his or her <i>own</i> thoughts.
As of 2011, there are at least 25,000 sworn (and armed) law enforcement officers working for federal agencies not traditionally associated with law enforcement, and 3,800 of them were specifically criminal investigators.
City-data.com crime index. 1  Full-time law enforcement employees in 2014, including police officers: 12,902 (12,034 officers). 2  Full-time law enforcement employees in 2012, including police officers: 12,766 (11,944 officers). 3  Full-time law enforcement employees in 2011, including police officers: 12,799 (12,092 officers).