Police believe outlaw motorcycle gangs are linked with the shooting of a Kambah home - the fourth bikie-related incident in just three months.
Detectives are investigating after the home was shot about 11.30pm Sunday.
No one was injured and the victim has chosen not to cooperate with police.
Detective Acting Superintendent of Criminal Investigations Marcus Boorman said: "While these incidents are serious, they are specifically directed at OMCG (outlaw motorcycle gang) members.
"There would be no benefit for deliberately involving innocent members of the community."
Police are urging anyone who may have seen anything suspicious in the vicinity of Chirnside Circuit in Kambah about 11.30pm Sunday or have information that could assist police to contact Crime Stoppers on 1800 333 000 using reference number 6026775. Information can be provided anonymously.