A police spokesman this week confirmed two men had been charged in relation to the death.
A 21-year-old man has been charged with driving with an excess breath alcohol causing death, and failing to stop or ascertain injury or death after a crash.
A 19-year-old man has been charged with failing to stop or ascertain injury or death after a crash.
Both are expected to appear in the Invercargill District Court next week.
De Croos, a Sri Lankan-born doctor, was one of the most respected athletes and coaches in the Olympic weightlifting movement.
Peter Meecham/Stuff
Former champion weightlifter and trainer Anton De Croos.