Hi MissprimThe 6th Dragoons Guards arrived in South Africa in December 1899. They took part in a number of set battles leading up to the Relief of Kimberley. As your man did not receive clasps for these actions it is probably that he arrived in SA in late 1900 or 1901 during what is known as the guerrilla phase of the war, when the good guys would 'drive' the Boers onto lines of block houses.From the date that he joined the SA Police it is likely that he served from about 1899 to 1911. To be sure, and also to discover the date he arrived in SA, you will have to see if his papers survive in Kew. If you cannot get to Kew Findmypast will be putting them online by 2011.Ken