Undercover police officers dressed in various costumes at the Rio Carnival. They wore masks of characters like Captain America and Batman. This allowed them to mix with the crowd undetected.

The officers targeted phone thieves. They aimed to stop thefts during the large event. The strategy proved successful in catching criminals.

Two individuals were arrested by the plainclothes officers. The arrests occurred during their anti-theft operation. This information was released by Brazil's Civil Police.

The use of disguises is a tactic to prevent crime. It helps police catch offenders in the act. The Carnival is often a target for petty crime.

The arrests highlight police efforts. Authorities are working to make public events safer. This method helped improve security for revelers.