Graham Smith was a Deputy Senior Personal Protection Officer to the Prince of Wales from 1981 to the 1990s. He was a Superintendent in the London Metropolitan Police Royalty and Diplomatic Protection Department and Detective for the Princess of Wales. He died in 1993. Wikipedia
The definitive Wikipedia entry for Graham Smith. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Graham_Smith_%28police_officer%29