His comments came a day after Southern district commander Superintendent Paul Basham moved to defend the district's officers when it was revealed Buis had resigned this month after remaining on paid leave since February 2015.
Basham slammed Buis' actions as "disgraceful" and said the majority of staff worked "hard every day to provide a quality service to members of the public".
The ruling of Judge Alistair Garland, released yesterday, revealed the offending of Constable Te Huia.
Te Huia verbally abused the victim after he and an associate were denied access to the Sky City Casino due to intoxication about 1.45am on September 3 last year.
The associate argued that the pair were not too drunk to enter the premises, but when security staff would not change their position he turned to leave, the judge's decision said.
"The defendant, who was standing at the top of the stairs, began to abuse the victim in a racial manner," it said.
Te Huia told the Korean security guard: "I can smell you. It smells Asian like a dog. You have shoestring eyes. I see you have no shoe strings in your shoes. Where are your shoe strings? Shoe lace eyes. Slant eyes."
After yelling at the staff member, his associate convinced him to leave.
Te Huia was granted a discharge without conviction. The reasons for that decision were withheld.
Basham said he expected the internal investigation into Te Huia's actions would be completed shortly.
-Otago Daily Times