A man alleged to be a high ranking member of the Comanchero bikie gang has been arrested by police in relation to two ongoing investigations.

The 28-year-old was arrested about 7.15am AEDT this morning at a home in Georges Hall, in Sydney's south west, and taken to Bankstown Police Station.

Charges are expected to be laid, police said in a statement.

"Police allege the man is a high-ranking member of the Comanchero outlaw motorcycle gang," they said.

"A search warrant is currently being conducted by police at the home in Georges Hall."

The arrest flows from investigations by gang squad detectives attached to strike Force Mezen and Strike Force Eastbourne.

Strike Force Mezen was investigating the alleged attempted murder of a Hells Angels member who was shot several times as he sat in his car in the driveway of a Lakemba home on March 29 last year.

The shooting happened seven days days after the death of Hells Angels associate Anthony Zervas at Sydney Domestic airport terminal on March 22, following a brawl between Comanchero and Hells Angels members and associates.

Seven people have been arrested in relation to the shooting.

Strike Force Eastbourne was investigating the alleged theft of 12 vehicles from a Liverpool holding yard on February 14, 2009.

It is claimed 13 men entered the yard before allegedly assaulting three male employees, locking one of them in the boot of a car and the other two in a separate vehicle.

The group stole keys from the premises before driving off with a dozen cars, with an estimated total value of $500,000.

Police have since recovered all 12 of the stolen vehicles.