Complex sentence: Moat apparently targeted Rathband randomly, simply for being an officer although, on an earlier occasion, Rathband had confiscated Moat's van on the suspicion that it was not insured.
Split into simpler sentences: Moat apparently targeted Rathband randomly, simply for being an officer. Although, on an earlier occasion, Rathband had confiscated Moat's van on the suspicion that it was not insured.