New opiate and crack-cocaine users: characteristics and trends 34 
 
 
DIP data are available by LAA (Local Authority Area). There are 148 of these across England 
and as the table below makes clear, all submitted some DIP data at some point between 2004 
and 2013. However, a quick glance through the table also reveals that many LAAs only 
submitted data for certain years. 
Annual number of DIP tests recorded by each LAA, 2005 to 201324. 
 
24  The total here does not include, LAAs outside of England, or cases where no LAA was recorded. It will therefore not sum to 
the 296,008 tests given in other tables.