Comment Meth Hype is Common: (Score 4, Insightful) 98
Take things with a grain of salt. Many of these "high tech meth lab" cases are someone using a couple of soda bottles and plastic straws to make meth with ingredients they bought at Walmart.
It may have been a random building worker doing this. If it were one of the scientists, I'd be surprised they'd be using drain cleaner as the sodium hydroxide rather than just getting some out of the lab. It's one of the most common lab chemicals.