The former driver of then Gauteng housing MEC Humphrey Mmemezi was convicted of reckless and negligent driving on December 3.
He was driving Mmemezi to a meeting when he crashed into biker Ferreira in November 2011.
Ferreira, who was 18 years old at the time, suffered head injuries and was comatose for weeks.
During the trial, the court heard that Semitjie was driving on the left side of the yellow line, and had not switched on his siren and had jumped a red traffic light.
At his previous court appearance on August 28, the court heard that the media portrayed Semitjie as a villain.
“He was highlighted as a villain [and] depicted as a cowboy on the roads by media,” psychologist Carl de Jager told the court.
He told the court Semitjie was very depressed and suffered from post-traumatic stress disorder and was taking medication.