The leader of a Brothers for Life gang faction allegedly involved in several shootings across Sydney in recent months has been caught, police say.

Three members allegedly holding leadership positions in the gang were arrested on Wednesday in police raids on properties on the Central Coast and in Sydney.

One of the men is Farhad Qaumi, who police say has played a strong role in the shootings.

“It will be alleged he is a leader of a group and leader of a faction that has been involved in most of the shootings that have occurred in Sydney in the last three or four months,” NSW Police Deputy Commissioner Nick Kaldas told reporters on Thursday.

Strike Force Sitella was formed last year to investigate the string of shootings in the last half of 2013.

Police say they know who was involved in the shootings, but the three arrested Brothers for Life members have not been charged over any of them.

“We pretty much know what has happened with just about all of the shootings that have occurred in the last 12 months,” Mr Kaldas said.

Middle Eastern Organised Crime Squad commander Detective Superintendent Deborah Wallace said those involved should come to police before officers came to them.

“They know who you are,” she said. “I suggest you knock on our door before they knock on yours.”