Panaji, Goa Chief Minister Pramod Sawant on Wednesday expressed gratitude to police personnel who sacrificed their lives for the nation.In a tweet, he said, ”Today, on the occasion of #PoliceCommemorationDay, I would like to express my sincere gratitude to all the police personnel who have sacrificed their lives for our nation.My respect goes out to their families and loved ones. We will always be indebted to the brave hearts.”The Police Department in the state observed Police Commemoration Day at Police Headquarters Ground in the city.