More than £4,000 of so-called legal highs have been handed to police hours after a new law surrounding their supply came into force.
An unnamed head shop in Leicester city centre surrendered the substances to officers on Thursday morning, Leicestershire Police said.
The blanket ban on supplying new psychoactive substances (NPS), which recreate the effects of illegal drugs, came into effect at midnight with punishments of up to seven years in prison for those flouting the new legislation.
Leicestershire Police said officers will monitor all business premises to ensure the substances have been removed from sale.
Officers are reminding people going to this year’s V Festival at Weston Park in Staffordshire to travel safe and not to bring drugs or so-called legal highs.
Everyone must allow themselves to be searched by police or security staff upon arrival at Weston Park. Police have warned that anyone found with drugs will be arrested and face prosecution.
Those caught with so-called legal highs, including nitrous oxide commonly known as ‘laughing gas’ will have their ticket seized and will be ejected from site.
Staffordshire Police have said that extensive CCTV coverage will be used to target offenders across the whole site, including car parks.
Festival-goers are also encouraged to follow the @VFestPolice Twitter account to receive the latest safety messages and advice.
Plans for a blanket ban on so-called legal highs outlined in the Queen's speech have been welcomed by Nottinghamshire County Council.
It would be an offence to produce, supply, offer to supply, possess with intent to supply, import or export psychoactive substances under proposals outlined yesterday, with the possibility of a maximum sentence of seven years imprisonment.
A total of 900 packs of untested drugs have been seized by Nottinghamshire County Council Trading Standards team over the last year labelled such as 'Herbal Haze', 'Pandora's Box', and 'Happy Joker'. New psychoactive substances (NPS) have been associated with seizures, kidney damage and death.
Councillor Glynn Gilfoyle, Chairman of Nottinghamshire County Council's Community Safety Committee, said:
A charity in Kettering has been given £250,000 in funding to raise awareness of legal highs.
Solve It will use the money to make people more aware of the potential dangers.
Last month, Lincoln became the first city in the country to introduce a ban on taking the substances.
Northamptonshire's Police and Crime Commissioner has told ITV News that the sale of the drugs is a big problem, the true scale of which is unknown.
Now a quarter of a million pounds is being given to a charity in the county working to make people more aware of the dangers of using so called legal highs.
Click below to watch a report from ITV News Anglia's Elodie Harper
Lincolnshire Police has dealt with the highest recorded number of incidents involving legal highs in England.
In the last year the force had to deal with more than 800 cases involving the drug, a rise well over double the figures in 2013.
A group of councillors have recommended a ban on so-called legal highs in the centre of Lincoln. If approved next year - it'd be the first place in the country to bring in the ban.
The proposed ban will go before the Executive on January 19.
Leicestershire Police are launching a crackdown on the sale of so-called 'Legal Highs'.
Officially they are called 'New Psychoactive Substances' (NPS) and are often sold as 'research chemicals' or 'herbal incense'. When tested many have been found to contain illegal and dangerous chemicals.
Deaths from using 'Legal Highs' are increasing and Operation Nitrox aims to tackle the growing threat they pose.
Leicestershire Police, in partnership with Trading Standards, hope Operation Nitrox will raise awareness and crack-down on retailers.