The man suspected of being the sniper who fatally shot WA Rebels bikie boss Nick Martin at Perth Motorplex late last year has been arrested.
A major police operation brought parts of Perth to a standstill on Monday.
Find out more in the video above
The man was arrested when dozens of officers from a range of agencies closed in.
In Waikiki, a home was surrounded, searched, and evidence taken away.
In Warnbro, bushland was scoured for clues, with federal police joining the search.
What they were looking for isn’t known.
What is known is that the man had prior involvement with the military and non-profit organisations in Iraq, and had been trained with advanced weaponry.
The man and his girlfriend have been described as model neighbours who were always on the lookout for people in their community.
Neighbours told 7NEWS they couldn’t explain why tactical response groups, detectives, AFP and forensic crews were searching the Waikiki home.
Detectives pored through the house, pulling out bag after bag of evidence.
A car was towed away – even a boat.
Sources have confirmed to 7NEWS that the man was being questioned by police over the murder of Nick Martin, which happened in front of shocked witnesses on December 12 last year.
Police offered a million-dollar reward to find the culprit.
On March 3 this year, a shooting targeted the home of Rebel bikie Dayne Brajkovich.
A week later, the home of a Mongols member in Port Kennedy was hit.
Just a week ago police launched a series of raids on bikie clubhouses.
The arrest is a huge step for Operation Ravello, after more than 100 search warrants, 100 arrests and 250 charges in connection with Martin’s public slaying.