Complex sentence: In 2009, prosecutors opened an investigation into charges of corruption dating to Pérez Balladares' time in office, and he was placed under house arrest the following year, making him the first former Panamanian president to later be arrested.
Split into simpler sentences: In 2009, prosecutors opened an investigation into charges of corruption dating to Pérez Balladares' time in office. He was placed under house arrest the following year, making him the first former Panamanian president to be arrested.