The crime-buster who planned and oversaw the raid on Kim Dotcom's Coatesville mansion, north of Auckland, will continue giving evidence about it in the High Court at Auckland on Friday.
Detective Inspector Grant Wormald of the Organised and Financial Crime Agency of New Zealand (OFCANZ) was cross-examined by Dotcom's lawyer Paul Davison on Thursday about using the elite Special Tactics Group (STG) in the January raid.
Det Insp Wormald told the court that the members of the STG "were the best people for the job".
The STG was able to ensure that the arrests were made quickly and that the evidence was secured safely and efficiently, Det Insp Wormald said.
He said a number of risks had been identified, including the possibility that there were firearms on the property, and it was felt that the involvement of the STG could overcome a lot of the problems police faced.
This week's court hearing into the police raid on the Megaupload founder's home follows on from a ruling in late June that the search warrants used to carry out the raid were invalid.
The hearing will determine what should happen to some of the evidence seized.
Dotcom and his three co-accused, Mathias Ortmann, Finn Batato and Bram Van der Kolk, face copyright, racketeering and money laundering charges in the US.
An extradition hearing is scheduled for March next year.
NZN