A few days ago Cameron van der Burgh publicly admitted that he cheated by taking extra underwater dolphins in the 100 m. breaststroke at the Olympics. He said he had to, because others do; not taking extra dolphins would put him at a disadvantage.
Disqualify him. Void his world record. Take his gold medal away. He didn’t win. He cheated.
Ban him from the sport for bringing disrepute upon the sport of swimming.
And, oh yes, FINA should either allow underwater dolphin kicks for the first 15 meters after the dive and after the turns in the breaststroke (as they do for all other strokes) or allow underwater cameras for judging the breaststroke and go back to the rules forbidding any dolphin kicks in the breaststroke.