text: 12 Note that this assumes individuals do not become more likely to be arrested once they have already been arrested once, 
  which may not be true if, for example, they became a known ‘face’ amongst the police. 
  
  13 We certainly would not expect the whole of the 330,000 original population to appear in the data, given that: 1) Evidence 
  suggests up to half finance their drug use without resorting to acquisitive crime (Morgan, 2014); 2) Some of the crime- 
  
  New opiate and crack-cocaine users: characteristics and trends  16 