No I have to disagree. Without knowing why the jury came to their decision, they cleared him of murder. He didnt get away with anything because he was a copper. He was convicted of/pleaded to manslaughter. The average sentence for that is about 6 years. A sentence of 13 years is therefore double and probably right for the charge, becasue he was a copper and because he was violent towards someone.
I am not defending him, I cant believe he got away with manslaughter but it had nothing to do with him being dibble.