The arrest by Brazilian police of Jorge Zelada, a former director of Petrobras’ international division, may expose new aspects of the bribery scheme that contaminated the company’s contractual relations over much of the last decade.

Zelada headed the international division between 2008 and 2012.

He is suspected of money laundering, appropriating public funds, corruption, tax evasion and contract fraud.

His predecessor, former international director Nestor Cervero, has already been given a custodial sentence after denying all involvement in the bribery scheme, and turning down a leniency deal.

Zelada’s