A legislative commission has decided to investigate the former head of the national water company who took a female employee to México last August.
The man is Oscar Núñez Calvo, who is executive president of the Instituto Nacional de Acueductos y Alcantarillados.
The Partido Acción Ciudadana already has called upon
President Laura Chinchilla to fire Núñez, who is a former legislative deputy and a high-ranking member of her Partido Liberación Nacional.
Núñez said that the woman accompanied him to México for training purposes.
The Comisión Permanente Especial de Ingreso y Gasto Público said it seeks to see if there was abuse of authority or misappropriation of public funds.