Some of those involved are thought to be actively avoiding police.
On November 29, a 46-year-old man was arrested and charged with aggravated robbery in relation to the incident.
He is due to appear in the Waipukurau District Court on December 8.
A 40-year-old man was also arrested on November 18 and charged with wounding.
As part of the investigation Armed Offenders Squad (AOS) was deployed to an address in Otane on November 17.
Police had also "seized a vehicle believed to be linked to the shooting, and are examining it".
Police would not confirm whether the vehicle was a silver sedan recovered in Hastings on the same day which appeared to have two bullet holes in it.
This was found on the corner of Lowe St and Orchard Rd and was towed from the scene.
The AOS callout was the talk of the town in Otane, although residents were unclear about exactly what occurred.
John Oliver of Otane Fire Station said the volunteer fire brigade had not been called out to help, but the Fire Station building on Campbell St had been put into lockdown to be used by police.
Nothing like this had happened in recent memory, Mr Oliver said, although "things are changing".
Local residents spoken to by Hawke's Bay Today said they had seen a number of police in the area on Friday, but did not know exactly what had happened.
A local business owner said he had seen "lots of cops cars" in Otane on Friday afternoon.
"We heard the 'pop, pop, pop'. I thought 'that's a weird sound', but I didn't think it was a gunshot."
He understood there had been an incident which emergency services were called out to, and that it "escalated from there".
When asked if there had been much talk among locals about the incident, McCauley's Store and Cafe owner Sue said it was "certainly something different".
"It's not something that happens everyday."
On November 19, police confirmed officers and forensic scientists from ESR were examining a property of interest in Long Range Rd, Pourerere.
Anyone who has information that might help, or was in the area of Long Range Road on the November 17 is being urged to contact Hawke's Bay Police on 06 8310700 or Crimestoppers anonymously on 0800 555 111.