The scale of the incursion of drug dealing into Norwich can be revealed after six months of intelligence work from police led to widespread disruption of the supply.
Operation Cayman was launched last month as officers focused on the supply of heroin and crack cocaine in the city, and the related violence spilling out into the county from London gangs.
For two weeks from April 16 more than 50 officers a day executed warrants and pre-planned arrests to interrupt the flow of drugs into Norwich.
According to papers going before the police accountability forum on Monday, intelligence gathered from the operation has revealed 28 lines of drug supply into the city, along with 11 other individual drug suppliers.
'The first three days of enforcement resulted in 30 arrests, with 21 people being charged or remanded into police custody,' the report states.
'A quantity of heroin and crack cocaine was seized together with vehicles used by drugs networks.'
Roads policing officers joined the operation using automatic number plate recognition (ANPR) to identify vehicles being used to transport drugs.
MORE: A city with a drug problem - Norwich becomes front line in drug war after 500 arrestsIt is believed to date the operation has had an impact on six local drug suppliers, six identified county lines and 16 drugs groups with supply links to the London area.
So-called 'county lines' - in which criminal gangs set up dealing operations out of their usual area, mainly London - has been a priority for Norfolk Constabulary since November 2016 with the launch of Operation Gravity.
More than 500 suspected dealers or runners have been arrested since during the life of the operation.
Assistant Chief Constable Paul Sanford said: 'We know our tough stance on Class A drug dealing in Norfolk is starting to get across to those involved in this illegal activity. One arrested individual told us they did not want to come to Norfolk because they knew they would get arrested.
'Our message is clear, we will not tolerate the supply and distribution of Class A drugs in Norfolk and the violent crime associated with it.'
Anyone with information about illegal drugs activity should contact Norfolk Constabulary on 101; however, if you have information but want to stay anonymous you can also contact independent charity Crimestoppers on 0800 555111.
Most wanted for drugs
Eight people remain outstanding in connection with county line drug dealing in Norwich.
-Jah Mal Ohene-Darko, aged 23, from the London area but is known to frequent Norwich
-Andrew Wirt, aged 31, from Norwich
-Conner Durrant, aged 21, from the Lowestoft area but frequents in Norwich
-Nathaniel Douglas, aged 29, from the London area but is known to frequent Norwich
-Sue-Lee Mackey, aged 32, from Norwich
-Muhammed Ashen, aged 29, from London but is known to frequent the Norwich area
-Shane Dagless, aged 30, from Norwich
-Rhyann Kelly, aged 18, from Liverpool but is known to frequent Norwich
If you have any information on the whereabouts of any of the individuals pictured, please do not approach them but contact Norfolk Constabulary on 101 immediately quoting CAD 265 of Wednesday May 2.
Alternatively you can contact the independent charity Crimestoppers anonymously on 08000 555111. They will not take any of your personal details.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here