Sarah's shoes change during the roof shoot-out, between high heels and much lower heels.
When Sarah looks up Cole on the computer, he is shown wearing a ribbon and star. This decoration is identical in shape and ribbon color to the 1939-1945 Star, a military campaign medal, issued to British and Commonwealth citizens for service in the Second World War.
When Sarah looks up Cole on the computer, he is shown wearing a ribbon and star, presumably supposed to be some sort of UK award. No UK award has the colors of the ribbon shown. Cole may have been entitled to an MBE or a CBE, possibly a CMG. None of the applicable awards bear any resemblance to that shown on the screen.
When Sarah researches Cole, she sees a certificate regarding Cole signed March 2005 by someone called Reynolds as Defence Secretary for the UK. The actual UK Defence secretary at the time was Geoffrey Hoon.