POLICE have downplayed allegations that businessman Adrian Trevett was murdered as payback for the indecent assault of two children.

Speaking outside Lismore Police Station following this morning's arrest of five people in relation to the murder, Detective Inspector Greig Stier confirmed the allegations had been made but said he did not believe that was the motive.

"There’s an allegation that perhaps Mr Trevett had indecently assaulted two children ... I don’t believe it is the motive," he said.

Det Insp added that police could not rule out robbery as a motive at this stage

"It would be inappropriate for me to discuss the actual motive today until we’ve spoken to all the people involved, but we can’t rule out a couple of things," he said.

"It too early to say but certainly we’ve seized a large amount of property from residences where we have executed search warrants."

Three men and two women were arrested following raids in Casino and Grafton over the alleged murder of Glen Innes businessman Adrian Trevett this morning.

The raids were carried out on three homes in Casino and a fourth in South Grafton and three men aged 25, 29 and 36 and two women aged 32 were arrested.

They are currently assisting police with their inquiries at the Casino and Grafton Police Stations.

Mr Trevett disappeared in October following a cycling trip to Jackadgery about 45km west of Grafton. He was driven to Jackadgery by a female friend and spent a night at a Mann River caravan park before riding his bike to the summit of the Gibraltar Range. His family raised the alarm when he failed to return home.

Last November New England LAC detectives established Strike Force Vallen to investigate Mr Trevett’s disappearance.

Last week detectives travelled to Brisbane where they arrested a 46-year-old woman who was extradited to NSW.

She was charged with Mr Trevett’s murder and appeared before Armidale Local Court last Saturday where she did not apply for bail. She has been remanded in custody to re-appear before Armidale Local Court on January 10.

Four days ago, officers led by Strike Force Vallen detectives, located a decomposed body in a ravine at Sandy Hill in the Girard State Forest, 30 km east of Tenterfield.

The body is believed to be that of Mr Trevett however police are still awaiting the results of forensic analysis to make a formal identification.

New England LAC Crime Manager Detective Inspector Greg Stier said the arrests follow an exhaustive investigation.

“We have conducted extensive inquiries into this matter and the complexities surrounding this investigation required us to work closely with other jurisdictions,” Det Insp Stier said.

“Today’s arrests are an outstanding result, however investigations are continuing.”

Anyone with any information is urged to contact Strike Force Vallen detectives via Crime Stoppers on 1800 333 000.

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