A police sniper peeked out of a helicopter as it performed a low flyby just a few meters above the Ministries Promenade in Brasilia. He was one of hundreds of officers deployed to secure the enormous grass patch -- which sits in front of the Brazilian Senate and Congress and is surrounded by most of the country's ministries -- where protestors were expected to gather last week.
source https://www.cnn.com/2023/01/17/americas/brazil-police-bolsonaro-congress-attack-intl-latam/index.html