Australian hockey player Tom Craig has been banned for 12 months following his arrest during the Paris Olympics last month on suspicion of buying cocaine, Hockey Australia said Wednesday.

Craig will serve at least half of the ban, which began on September 9, with the remaining six months to be suspended if the player met conduct requirements, a Hockey Australia statement said.

The 29-year-old was released without charge, but was given a warning by a judge after French police detained him for allegedly trying to buy cocaine in Paris days after Australia lost their hockey quarter-final at the Games.

"Craig is required to complete mandatory training and education programs as part of his sanction," the statement read.

"Tom has had access to all of the athlete support services under our program and he will continue to do so throughout his suspension," it added. "His welfare remains our priority."

Craig will be eligible for the 2025 Australia squad, which will be announced at the end of the year.

The midfielder admitted he had "made a terrible mistake" following his release from custody, and apologised to his family, friends, team-mates and the Australia Olympic team.

Craig made his international debut in 2014 and has played more than 100 times for Australia. He was part of the silver medal-winning team at the Tokyo Olympics. (AFP)