Police raided several homes in Beaconsfield early this morning after residents complained the suburb was becoming the 'Beacy Bronx'.
About 70 police with dogs and horses were involved in the dawn operation, which involved co-ordinated raids on homes in a small pocket of the southern suburb.
Some residents, sick of crime in the area, clapped as police searched the properties.
It is believed repeated complaints from local residents provided information that led to some of the raids.
Acting Supt Peter Morrissey said a small pocket of Beaconsfield, less than one square kilometre, accounted for 30 per cent of police tasking time and 25 per cent of incident reporting for the whole suburb.
"It is a hotspot," he said.
Police raided several properties this morning, acting on community complaints and their own data to target known offenders and those linked to drug-dealing, burglaries, violence and anti-social behaviour.
"There is an inextricable link between anti-social behaviour, the abuse of alcohol and drugs and volume crime," Acting Supt Morrissey said.
"A lot of the tasking we do in this area is associated with alcohol and drug abuse and anti-social behaviour, therefore we've been able to target this one specific spot within this area that's been responsible for a lot of activity as far as policing is concerned."
He said he hoped the operation would allay some community fears and provide confidence that they had a safe environment to live in.
Most people living in the high-density area were "good solid citizens".
"Unfortunately a small pocket of people go about trying to destroy that quality of life for them.
"What we've done today hopefully is put a bit of a dent in that."
He said police had discovered drugs, weapons and stolen property during the raids.
A replica gun, silencer and machete were seized and a stolen scooter was found in one of the homes searched.
Tensions boiled over in one street as police finished their inquires, with angry confrontations between residents.
Locals call the area "Beacy Bronx". One woman said there was a divide between those who used drugs and those who did not.
Older residents have told of their fear of going out of their houses because they were often abused or had rocks thrown at them.