It is 'impossible to visually identify' the strength or type of drug when buying, warns police spokesperson ...

LSD is usually distributed on sheets of blotting paper that have been dipped in the substance, dried and perforated into small paper squares or ‘tabs’ (these often bear psychedelic symbols or designs.

LSD, a hallucinogen, is a liquid typically put on paper and divided into small squares. Each square is a dose and is ingested orally. LSD, also known as acid, was popularized in the 1960s.

You may begin to feel the effects of LSD, or acid, within 20 to 90 minutes. ... People typically drip the liquid onto absorbent, colorful paper squares called blotter papers.

Police want people to be aware that the paper squares contain the synthetic hallucinogenic drug 25i-NBOH which is very strong and has 'unpredictable' effects.

Police warn against 'overwhelming' paper square LSD drugs. ... Sometimes referred to as blotter art or trips, the paper squares contain the drug 25i NBOH and are usually sold as acid or LSD.