Nine people were arrested an unprecedented police operation to shut down a string of suspected drugs dens in St Helens.
Officers executed warrants at 16 addresses across the borough where they believed drug dealers were operating.
A total of 13 closures notices were issued with a view to closing them for a three-month period.
It is believed this is the first time these civil powers have been used on such a large scale.
Preliminary searches uncovered a quantity of drugs and stolen property.
Closure notices have been secured at the following addresses: 124 Windle Hall Avenue, 31 Bolton Street, 39 Bruce Street, 72 Bruce Street, 69 Creswell Street, 38 Eccleston Street, 11 Norman Salisbury Court, and 18 Norman Salisbury Court.
Magistrates in St Helens will hear applications to close three more address this week.
Of the nine individuals arrested, four have since been released on police bail while no further action will be taken against four individuals.
One man appeared in court over non-payment of a fine
Insp Dave Brennan, of St Helens town centre team, said: “This operation has been targeted at the organised criminals supplying controlled drugs in the St Helens central area.
“We have acted on behalf of the vast majority of residents who have seen their streets blighted by drugs and anti-social behaviour and by criminals using these addresses to supply drugs.
“Nobody should have to put up with this.”