RAIDS across Morriston and Swansea's Eastside have seen 29 people arrested.
The public have been thanked by police for their help which led to arrests for a range of suspected offences, including the possession and supply of drugs, burglary, assault, and theft.
The three-day operation was the latest stage of South Wales Police's on-going Operation Anvil.
A number of those arrested have been remanded into custody, while others have been released on police bail pending further inquiries.
Sector Inspector Mark Lenihan said: "We have targeted suspected criminals and disrupted the suspected criminal activity of dozens of people across Morriston and Eastside.
"The feedback we have received from members of the community has been extremely positive.
"We have specially targeted people suspected of being involved in the most serious of crimes, such as burglary and drugs offences. Several of those arrested have been charged and remanded in custody until after the Christmas period."
He added that it was "as a direct result" of information supplied by the public that officers had been able to make arrests and obtain drug search warrants, and he thanked the community for supplying vital intelligence.
Last week's swoops were the third outing for Operation Anvil this year — 89 people across Morriston and Eastside have been arrested so far.
Inspector Lenihan said he wanted to give a clear message — if you commit crime, you can "expect to face the full force of the law".
He added: "If anyone has any information or concerns about crime in the community then they should contact the police or Crimestoppers and they can be reassured that we will act — all the information will be treated confidentially."
Can you help? Call South Wales Police in 101. Or you can call Crimestoppers anonymously on 0800 555111.