Detectives from the Major Crime Squad have charged prominent Perth lawyer Lloyd Rayney with the wilful murder of his wife, Corryn.

Corryn Rayney was last seen at a boot scooting class in suburban Bentley on August, 7 2007.

Just over a week later, her body was found in a bush grave in Kings Park.

Today police arrested Lloyd Rayney in the centre of Perth and he was taken to Curtin House for questioning.

Detective Sergeant Paul Coombes says charges have now been laid.

"This person has been charged with one count of wilful murder and is due to appear at the Perth Magistrates Court on Thursday, December 9.

Police are conducting forensic testing of the Rayney family's Como home.

Detective Sergeant Coombes says police are calling for help from the public.

"Members of the public who believe they have any information concerning Mrs Rayney's murder which they have not already provided to police are asked to call Crime Stoppers," he said.

In 2007, police identified Mr Rayney as the prime and only suspect in his wife's murder.

Mr Rayney vehemently denied the accusation and launched defamation proceedings against the state.