1. 
   habitual criminal
   noun someone who is repeatedly arrested for criminal behavior (especially for the same criminal behavior)
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=habitual%20criminal
   
   
2. 
   Habitual Criminal
   (n) Habitual criminal is the person involved in multiple and continued criminal activities and does intentional crime as a habit. A habitual criminal does felonies as a part of his life or habit.
   Found op http://www.legal-explanations.com/definitions/habitual-criminal.htm
   
   
3. 
   Habitual Criminal
   Defined by the 1869 Habitual Criminals Act as “suspicious persons” who had previously been convicted of more than one offence.
   Found op http://www.oldbaileyonline.org/static/Glossary.jsp
   
   

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