The former officer had already served 15 months of the four-year jail term after his first conviction in February 2010, before being walking free after the appeal was allowed. Now as his latest court battle ends in failure he is once again heading back to the prison to serve a three-year sentence. The former officer had already served 15 months of the four-year jail term after his first conviction in February 2010, before being walking free after the appeal was allowed. Now as his latest court battle ends in failure he is once again heading back to the prison to serve a three-year sentence.