The black-and-white feline, carrying over 230 grams of marijuana and 67 grams of crack cocaine in two packages, was captured this month at a prison in the canton of Pococi, the justice ministry said in a statement Tuesday.
It shared a video of a guard climbing a perimeter fence to catch the cat burglar.
A cat was captured on its way to deliver the drugs. Video by Ministry of Justice and Peace of Costa Rica
Later, the feline is seen on a prison table while guards cut the packages from its tiny body.
"Thanks to the quick actions (of the guards) the feline was caught and the packages were removed, thus preventing them from reaching the inmates, said the ministry.
The cat was taken to an animal welfare society.