Down manager Paddy Tally has been hit with an eight-week ban after members of the county panel gathered in a large group earlier this year.
The PSNI arrived at the session at Abbey CBS in Newry after a member of the public became concerned at the large group together in one area.
Elite teams are permitted to train under Covid-19 restrictions but the GAA had instructed inter-county teams not to gather at that time.
Down insisted that players had been present to receive programmes for individual training but were found to have broken the rule against collective training.
The Central Hearings Committee found the Down boss had committed an infraction under rule 7.2e, "misconduct considered to have discredited the association".
Tally's proposed 12-week suspension was reduced to the minimum eight weeks, which will begin from yesterday. Tally has the option to appeal.
Down are not currently scheduled to have any games in the next eight weeks as no date has been set for a return to training by Central Council.
The county had already accepted losing home advantage for one of their Allianz Football League Division 2 matches this year.