Complex sentence: He was firstly awarded the George Medal on 10 May 1960 for his apprehension of an armed man, this was followed his Queen's Police Medal which he was awarded on 11 June 1977.
Split into simpler sentences: He was firstly awarded the George Medal on 10 May 1960 for his apprehension of an armed man. This was followed by a Queen's Police Medal which he was awarded on 11 June 1977.