CANNABIS smokers are brazenly puffing joints in one of Britain's first high-street "weed cafes".

The illegal Amsterdam-style cafe hosts scores of customers at a time who eat, drink and smoke weed.

7 The cafe, dubbed Adam's Den, hosts scores of customers at a time who eat, drink and smoke weed Credit: The Sun

7 Our reporters were able to buy two £20 one gram bags of 'Silver Haze' weed from 'Abs' who was running the bar area at the back of the cafe Credit: The Sun

Dubbed Adam's Den, the high-street venue sits on a busy road and directly opposite an NHS hospital.

The upstairs cafe is advertised to punters on social media and by word of mouth - with the shop often packed with people.

Customers can buy fruit smoothies, cold drinks, or snacks such as Kit Kats - and illegally super-strength weed or hash.

The cafe, which has CCTV to monitor its entrance and surrounds, sits on east London's bustling Whitechapel Road and opposite the Royal London Hospital.

Our reporters watched as locals brazenly strolled into the cafe between two clothes shops to buy weed at £20 per bag and then sat around puffing joints.

We were able to buy two £20 one gram bags of "Silver Haze" weed from "Abs" who was running the bar area at the back of the cafe.

Abs had shown our reporters a menu on his bar which offered a range of super-strength weed including "Lemon Haze", "Power Plant" and "El Chapo" - named after the jailed Mexican drug lord.

Many of the strains on the menu share their names with "potent" types of cannabis often mixed with skunk.

Our lab report results showed the "Silver Haze" weed we bought contained the "major psychoactive constituent of cannabis".

The chemical - known as Delta 9 THC - is "one of the oldest drugs known" and has appetite-stimulant effects as well as psychoactive.

Research has shown that one in four new cases of psychotic conditions could be the result of smoking extra-strong varieties of cannabis - a Class B drug.

The study estimated that daily users of skunk are five times more likely to suffer conditions such as schizophrenia or paranoid episodes.

7 One poster advertised a £7 entry fee to the cafe to watch last month's Floyd Mayweather vs Conor McGregor super-fight Credit: The Sun

7 Abs had shown our reporters a menu on his bar which offered a range of super-strength weed Credit: The Sun

A source has told The Sun "weed cafes" are now popping all over London and other UK cities - with the Whitechapel Road den operating for around eight months.

They are imitating the popular, legal cafes which exist in cities such as Amsterdam, Holland.

Abs, working in the East London cafe, later showed our reporter hashish cannabis resin which he bragged had "come from Morocco and probably through Spain".

He boasted of its quality and consistency before joking over his image of drug lord "El Chapo" which he had drawn on to his cafe menu.

The cafe also offers fruit smoothies, a fridge full of soft drinks, snacks for the "munchies" but warns customers not to bring in their own alcohol.

It is cosily decorated with art, animal skins, maps mockingly showing the "hash route" from Morocco with arrows - alongside tables and chairs for customers.

Another poster even advertised a £7 entry fee to the cafe to watch last month's Floyd Mayweather vs Conor McGregor super-fight.

7 The upstairs cafe is advertised to punters on social media and by word of mouth - with the shop often packed with people

7 One Instagram user who posted a picture of cops swarming on an East London street

A source said: "The cafe gets busy late at night with around 50 or 60 people in at a time - it's really popular.

"It's been around for about eight months but they've got CCTV inside which watches the entrance and also looks across the road.

"It means they can see if any police are coming in and hide all the gear as quickly as they can.

"They've moved around before now and pop up all over - there are cafes all over London."

A private Instagram account, understood to belong to the cafe, has more than 1,000 followers.

Other posts from customers show them brazenly boasting about smoking cannabis at Adams Den alongside pictures of weed.

One said: “Flavoursome night down #adamsdenn #EastLondonCannabisClub”.

Another adds: “Big Halloween blaze up 2nite in #adamsdenn #WhosReady for the flavours”.

On May 12 a visit to Adams Den seemed to go less smoothly for one Instagram user who posted a picture of cops swarming on an East London street.

The post reads: “DO NOT HEAD TO ADAMS DEN!! POLICE ALL OVER SHOP.”

7 The secret cafe, which has CCTV to monitor its entrance and surrounds, sits above this completely unrelated jewellery store

The Sun informed the police about the location of the cannabis cafe.

Sergeant Rob Rai, of Tower Hamlets Met Police, said: “The

operation of premises for the sale and consumption as cannabis, often referred to as ‘cannabis cafes’, is an issue we deal with proactively.

"In 2017 Whitechapel Safer Neighbourhoods Team have executed search warrants at three such premises to disrupt illegal activity.

"Those premises have now been returned to lawful use to the benefit of the community of Tower Hamlets.

"These premises can cause significant nuisance and disruption to the lives of the local community.

"And where we receive specific information of such premises we will continue to target them in this way and shut them down.

"We encourage anybody with such information to contact their neighbourhood team or to call Crimestoppers and report it anonymously.”

Research has estimated more than one million people are regularly smoking cannabis in the UK with an illegal industry worth billion of pounds each year.

Possession of a Class B drug could result in up to five years in prison, an unlimited fine or both.

Police can also issue a warning or on-the-spot fine of £90 to anyone found with cannabis.

Supplying or producing the drugs could lead to 14 years in prison, an unlimited fine or both.

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