Police justifications for using anti-terrorist officers to raid Kim Dotcom's home were partly based on claims the tycoon assaulted a former staff member with his stomach.
A police form described the assault complaint by video editor Jess Bushyhead as "minor". The form quoted Mr Bushyhead saying the tycoon had "body-butted me in the left shoulder using his stomach".
Dotcom, who weighs about 165kg, was arrested two weeks later on copyright violation charges at the request of the FBI. A judicial review into the search warrants used in the raid, which featured the elite Special Tactics Group (STG), was heard last week.
Detective Inspector Grant Wormald, who led FBI assistance, told the court he sought the group's help, leading to its assessing whether its involvement was appropriate.
The assessment by the group stated Dotcom had a history of violence, was currently exhibiting violence and posed a threat of injury or death to non-specialist officers.