A 16-year-old boy was caught wandering around the Stanney Oaks estate in Ellesmere Port with no clothes on last night (May 10).
Members of the public reported sightings of the naked teenager on Stanney Woods Avenue and Rona Avenue to the police at around 8.30pm.
Attending officers located him and then discovered another teenage boy in Stanney Woods.
Police believe the pair were under the influence of an internet-bought psychedelic drug, and say both will be spoken to in front of their parents.
Sgt John Taylor said: “The outcome of this could have been a lot worse.
"It is worrying that the boys got the drugs, believed to be LSD, from the internet.
"Besides the fact they are illegal, you don’t know what you are buying and what is contained in them, putting you at real risk.
"In this case it had an effect that left the two boys in a vulnerable state and one member of the public who came to help almost got punched.
“We will be advising schools about the incident and reminding young people about the dangers of taking drugs.
"If you are concerned about friends or family taking illegal substances you can get advice from your school or from the FRANK website."