Threat might remain theoretical but British Horseracing Authority determined to avoid damage to sport’s reputation

The term “world-leading” has become a favourite of certain politicians in recent years and much devalued as a result, but it seems fair to apply it to the introduction of testing for gene doping in British racing before the start of the new Flat season on turf.

Gene doping was initially identified as a possible threat to racing’s integrity as long ago as 2019, and while there is, as yet, no evidence that the technique has been used to improve performance, either in training or on the track, Brant Dunshea, the British Horseracing Authority’s chief executive, said on Friday that the necessary technology and expertise is increasingly widespread.