Pill testing at night clubs is a gross violation of people's rights, not to mention simply bad business practices, so it's not something that should be implemented. People are far too worried and consume so much of their attention and anxiety on drugs, it's quite ridiculous. It's time to stop worrying about such things.
Pill testing at night clubs is an invasion of people's personal right to privacy. This would start a slippery slope that would lead to unreasonable searches in other venues. As long as people are not disrupting the environment or causing problems for the venue, they should be left to enjoy themselves in peace.