Drug checking services have been operating worldwide as a harm reduction tool in
places like festivals and night clubs. A systematic review and netnographic analysis were conducted
to explore the public’s perception of drug checking. Although public perceptions of drug checking
had not previously been evaluated in the literature, some positive and negative perceptions were
captured. From twitter, a total of 1316 tweets were initially identified. Following the removal of
irrelevant tweets, 235 relevant tweets were identified, of which about 95% (n = 223) tweets were in
favour, and about 5% (n = 12) were not in favour of drug checking as a harm reduction intervention.
Tweets perceived the service as part of effective law reform, public health intervention that
serves in raising awareness and countering the role of the internet, initiative to reduce drug related
harms and/ or potentially deaths, help in identifying Novel drug trends related to drugs, enabling a
scientific basis to capture data, reducing harm from risky drugs or risky consumption, reducing the
economic and social burden on society and preventing young people from having criminal records
and punitive fines. Drug checking was perceived to support engagement with treatment services and
support individuals in making more informed decisions. Tweets against drug checking focussed on
the concerns over the quality of drug checking, particularly with false-positive results, which may
lead to punitive outcomes, discrimination, and prejudice. The present study showed that twitter can
be a useful platform to capture people’s perceptions of drug checking.