Complex sentence: Delaney and Uttley were concerned for the safety of the trophy which was being kept at Uttley's council house and appeared increasingly vunerable due to the increasing media attention placed on it and were anxious it should be turned over to the authorities before it was stolen again.
Split into simpler sentences: Delaney and Uttley were concerned for the safety of the trophy which was being kept at Uttley's council house and appeared increasingly vunerable due to the increasing media attention placed on it. They were anxious it should be turned over to the authorities before it was stolen again.