Evaluation of a drug checking service at a large scale electronic music festival in Portugal.

Background: Drug checking services are being implemented in recreational settings across the world, however these projects are frequently accused of a lack of evidence concerning their impact on people who use drugs. This paper describes the implementation of a drug checking service at the Boom Festival 2016 and explores the impact of this service on its users' behavioural intentions.

Methods: 753 drug samples were submitted to the drug checking service for chemical analysis.

Crisis intervention related to the use of psychoactive substances in recreational settings--evaluating the Kosmicare Project at Boom Festival.

Kosmicare project implements crisis intervention in situations related to the use of psychoactive substances at Boom Festival (Portugal). We present evaluation research that aims to contribute to the transformation of the project into an evidence-based intervention model. It relies on harm reduction and risk minimization principles, crisis intervention models, and Grof's psychedelic psychotherapy approach for crisis intervention in situations related to unsupervised use of psychedelics.