The diagram below shows information about wiretap authorisations between 1997 and 2007.
The bar chart compares and contrasts data on the changes in the number of wiretap authorisations by federal and state over an 11-year period, from 1997 to 2007. A closer look to the diagram highlights the fact that the state authorisations rose while the federal wiretap authorisations number declined over this period of time.
More specifically, the biggest gap in wiretap authorisations point was in 2007, approximately 1,750 authorisations in federal, by contrast in the state only had less than 500 authorisations, a difference nearly 2.5%. Subsequently, the most constant aurhorisations number can be found from 1998 until 2003 when the authorisations' range from a little under 500 to about 750 authorisations, despite the notable exception in 2001, the states had nearly a thousand authorisations. There was a continued increase in the number of wiretap authorisations falling over five consecutive years from about 750 authorisations in 2003 then climbed considerably two times, below 2,000 authorisations in 2007.