I've seen a couple of deaths at work from MDMA, all in people who had taken it before without issues.
A good article if anyone would like some science n shit:
https://academic.oup.com/bja/article/96/6/678/326917
I think some of the more broad implications for pill testing need to be sorted out before it gets considered. The worst outcome would be to introduce it based on political pressure from overly dramatic news articles.
Other key issues:
- Absolving responsibility of the individual
- Ability of tests to measure dosage, highly variable
- Ability to detect contaminants the pills may be cut with
- Attribution of blame if a tablet tests normal and someone dies from an idiosyncratic (random) reaction
- Condoning illegal consumption
- Responsibility to report if someone turns up with a thousand pills for testing
- Cost comparison vs lives saved, there is a distributive justice argument which needs to be satisfied
All of this needs to be evaluated without personal bias, and in light of experiences from other countries which have done this.