Police have seized drugs, a weapon and phones in a series of searches carried out by the Chorley and South Ribble Task Force on Saturday (May 17).
Officers conducted 13 stop searches and recovered a knife, a large amount of class A drugs and three burner phones.
They also issued three youth referrals.
Police are also investigating "two active crimes" and are in touch with the landlords of two premises.
A spokesperson for the police said: "Today (May 16) Chorley and South Ribble Task Force have been busy, busy, busy.
"We have had 13 stop searches. Recovered one knife, Recovered a large amount of class A drugs along with three burner phones.
Read more
"Issued three youth referrals. Carried out three safeguarding visits at vulnerable premises. We are now investigating two active crimes and we are making contact with the landlords of two premises to ensure they are secured to help make your community a safer place to live.
"If you have any information about drug use or other criminality in your area then you can contact us on Chorleyandsouthribbletaskforce@lancashire.police.uk.
"All information will be treated confidentially.Together we can make your community a safer place to live."
Share