"It's really unfortunate that those people chose to use that dog in that way and caused that action to be taken."
It was unknown what breed the dog was, he said.
People who were leaving the house as police arrived seemed fearful and there was a clear need for police to go inside, he said.
People at the address had gathered to commemorate a recent death in the family and alcohol was definitely a factor, Mr Sutton said.
"Things got a little bit out of hand with a couple of them there and it got worse from there."
After the confrontation with the dog, officers called for back-up from Hutt Valley and Wellington police.
"With the help of some of the occupants, we managed to gain control of the situation and thankfully no one was hurt."
Police were at the house until the early hours of the morning dealing with the volatile situation, Mr Sutton said.
One man was initially arrested for obstruction, but was released with a warning.
No arrests had yet been made in relation to the alleged knife threats, Mr Sutton said.