Police in Greater Manchester believe they've uncovered one of country's biggest operations to supply the party drug mephedrone also known as Meow Meow.
Twelve people have been arrested by officers investigating a drugs ring worth almost £4m.
Elaine Willcox has the latest
Police have raided a suspected crime gang in the North West in the biggest operation to date to tackle dealing of party drug meow meow.
Officers arrested 12 people being investigated over the sale of £3.8 million worth of the drug through an online website, run from an industrial unit in Bolton, Greater Manchester.