Graciele Tomaz, 25, attacked her boyfriend, Josi Roberto Pereira, with a club, then left him for dead in a shallow grave in their garden last week.
According to Daily Mail, after 17 hours underground, the man escaped and asked for help – but when he reported the crime to police, they arrested him on an outstanding warrant for attempted murder.
Pereira visited his local police station to report the crime, but when police ran his name through the computer they discovered a 14-year-old warrant for his arrest and was held at the police station.
The Sergeant on scene said: ‘Because she is a very strong woman, it is possible she acted alone in hitting him and digging the grave. But we are awaiting the results of the investigation.