OPERATION ZEUS was a two year investigation into an organised narcotic crime ring involving gangs from various areas of North Wales and parts of England.

In November 2017, more than 250 police made early morning raids on 27 properties across Anglesey, Conwy county, Manchester and Merseyside with the aim of tackling the supply of cocaine and heroine across the region.

Run by the Serious Organised Crime Unit, the co-ordinated strikes which were part of Operation Zeus, were described as North Wales Police's largest drugs operation in 20 years.

Seizures made at the properties included controlled drugs and cash and 15 people were arrested at that time.

Here, we give you a timeline of how the operation unfolded and how the force managed to tackle an organised crime set-up worth a potential £2.7 million.

August 13, 2017 - the drugs operation begins to unravel when Police are called to the Boston Arms in Holyhead, where ringleader Aled Gray operated from, on an unrelated matter. While searching the pub, officers discovered a quarter of a kilogramme of cocaine and £4,000 in cash.

November 21, 2017 - Operation Zeus is officially underway as more than half the force's frontline staff take part in raids at 27 properties.

Among the items found during the raids were cocaine, benzocaine, ecstasy tablets, cash and a presser used to alter the drugs.

15 people from Holyhead, Llandudno, Llandudno Junction, Liverpool and Manchester were arrested.

Holyhead ringleader Aled Gray was one of those brought in on suspicion of conspiracy to supply class A controlled drugs.

November 23, 2017 - Nine men appear in Caernarfon court charged with being involved in the supply of drugs in North Wales following the arrests made earlier in November.

These men were - Aled Gray, Cain Jones and David Cuffin from Holyhead, Matthew Phillip Jones from Mochdre, Lee Jones, 27 from Llandudno; Liam Roberts from Rhyl; Phillip John Scarisbrick from Liverpool; Jordan Peeks from Manchester and Lee Bamber from Salford.

They spoke only to confirm their names, addresses and dates of birth.

A further man in his 40's, Eric Rowlands, was charged with conspiracy to supply cocaine and released on bail to appear before Caernarfon Magistrates the following month.

On this date, Police also raided four addresses in the Deeside area, where several further arrests were made.

February 2018 - A man from Holyhead suspected of money laundering was arrested at Manchester airport after a flight from Thailand. Two others from Holyhead were also detained.

At this time, Police said that a total of 41 people had been arrested since they launched Operation Zeus in November. Charges range from money laundering to conspiracy to supply drugs.

December 11, 2018 - The first 10 of 27 individuals responsible for substances and cutting agents that could have potentially flooded the region with class A drugs worth more than £2m are sentenced at Mold Crown Court.

Jordan Peeks, 37, was sentenced to 10 years in prison for conspiracy to supply cocaine and cannabis.

Phillip Scarisbrick, also 37, played a leading role, providing "industrial quantities" of the mixing agent Benzocaine. He was sentenced for nine-and-a-half years.

Lee Bamber, 45, was said to be a courier for Jordan Peeks, meeting with representatives in Holyhead and Llandudno. He was given six years in jail.

Cain Jones, 23, was integral to the Holyhead end of the operation, liaising with contacts and working from the gang's bases believed to be at The Boston Arms and Dublin Packet pubs in the town. He received a sentence of 12 years for conspiracy to supply cocaine and heroin.

Lee Jones, 28, had responsibility for the handling and onward distribution of cocaine and was in contact with Bamber. He was sentenced to eight years for conspiracy to supply cocaine and cannabis.

Matthew Jones, 28, controlled the Llandudno crime gang. He was sentenced to 12 years for conspiracy to supply cocaine and cannabis.

William Carlisle, 27, worked closely with Jones and the Rhyl arm of the operation. He was sentenced to 10-and-a-half years for conspiracy to supply cocaine and cannabis.

Richard Williams, 25, was involved with supply of heroin and cocaine in Holyhead. He was handed 10 years by judge Niclas Parry.

Jay Peeks, 33, is the brother of Jordan and was involved in arranging the transit of significant quantities of cocaine to north Wales. He was sentenced to six-and-a-half years.

Finally, there was Liam Roberts, 30, who was said to be a courier for Zach Leuty (sentenced later) in the Rhyl area. He was senteneced to four-and-a-half years in jail.

December 12, 2018 - A further nine individuals are sentenced for their role in the major drugs operation with the following jail terms:

David Cuffin - six years, Thomas Middleton - Six and a half years, Eric Rowlands - five years and four months, Gareth Hastie - five years and four months, Andrew Aldred - five years and four months, James Hendry - five years and four months, Nathan Jeavons - six years and four months, Christopher Bennett - Four years and eight months and 18 months for supplying cocaine and finally, Hayley Evans - two years and further 12 months for supplying.

December 13, 2018 - A further seven are sentenced at Mold Crown Court. Darren Myles is given nine years, Shaun Kearns; three years and 10 months, Simon Farrar; four years eight months, Kelly Mercer; 18 months, Zach Leuty; six years, Ben Hayward; four years and finally Barry Haigh; four years and eight months.

March 1, 2019 -The final piece of the jigsaw came when Holyhead kingpin Aled Gray was jailed for 10 years for his part in the selling of class A drugs across north Wales.