lisbon colombian police arrest local director operations portuguese retailer jeronimo martins charge corruption company say thursday add report executive authorities jeronimo martins large food retailer poland second large portugal expand colombia past four years jeronimo martins colombia recently report colombian authorities existence potential case private corruption personal benefit harmful company detect internal systems company spokeswoman say director operations ara detain follow joint action colombian authorities say decline provide detail jeronimo martins enter colombian market 2013 open 200 store since ara brand colombia arrest local director portugal 's j.martins corruption charge