article_snippet: Claims: Aleksandar Kovacic, pictured outside the High Court in London today, said Aleksandar Kovacic could barely walk after a fatal head-on collision in 2010 .
article_snippet: Aleksandar Kovacic said Aleksandar Kovacic could barely walk and was incapable of returning to Aleksandar Kovacic job as a support worker after the crash in Milton Keynes, Buckinghamshire, in March 2010.
highlights_snippet: Aleksandar Kovacic suffered serious injuries in head-on collision in 2010 .
  
highlights_snippet: Claimed Aleksandar Kovacic could barely walk and was incapable of returning to work .
  
highlights_snippet: But Aviva became suspicious and placed Aleksandar Kovacic under surveillance in 2013 .
  
highlights_snippet: Private investigators filmed Aleksandar Kovacic driving, walking and carrying heavy items .
  