The feline felon was stopped outside the Nueva Esperanza jail, which houses more than 1,700 prisoners, in the Caribbean province of Colon, north of the capital Panama City.
"The animal had a cloth tied around its neck" that contained wrapped packages of white powder, leaves and "vegetable matter", according to Andres Gutierrez, head of the Panama Penitentiary System.
They were likely cocaine, crack and marihuana, according to another official.
This is not the first such attempted critter crime.
Prisoners use food to lure animals to them, once the creatures had been loaded with drugs by people on the outside.
The office of the drugs prosecutor of Colon said on Twitter it had opened an investigation into the use of animals for smuggling illegal substances into the Nueva Esperanza Prison.
Comprometidos con el bienestar de nuestra fauna doméstica, uniformados del Complejo Penitenciario Nueva Esperanza de la provincia de Colón, entregaron un gato a la Fundación Adopta por Amor y Defensores de Animales. #UnPanamáMejor pic.twitter.com/fdNZAEhvWx
— Policía Nacional (@ProtegeryServir) April 16, 2021
It posted photographs of the drugs, and of the cat caught in the act.
The animal will be taken to a pet adoption center, according to prosecutor Eduardo Rodriguez.
Panama has some 18,000 inmates in 23 prisons, most of them overcrowded.
On previous occasions, authorities have intercepted attempted drug deliveries using homing pigeons and even drones.
