Complex sentence: After the accident, Crowther was able to tell the police his personal details including his home telephone number and what Warfarin tablets he was taking for his heart condition, he had been diagnosed with heart trouble three years before.
Split into simpler sentences: After the accident, Crowther was able to tell the police his personal details including his home telephone number and what Warfarin tablets he was taking for his heart condition. Crowther had been diagnosed with heart trouble three years before.