Crystal meth in Breaking Bad
Can good quality crystal meth really be made and sold as in Breaking Bad?


Yes, most procedures are accurate, although the whole methylamine is so hard to get idea in Breaking Bad is nonsense. It is DEA List I chemical, but can be easily manufactured and no sane kingpin would go steal it from a cargo train (although it makes a good scene). The real problem is getting the P2P (phenyl-2-propanone, or phenylacetone) which the authors of breaking bad seem to ignore (probably on purpose, so that stupid kids won't try and make it at home).


  Can a pharmaceutical drug really be reverse engineered?


Reversed engineered? Assuming you are talking about the transition of pseudoephedrine into methamphetamine, this is just a chemical reduction, following this scheme (if this kid wants to make meth, he would have found this procedure anyway, I'm not giving out any special information that would help anyone manufacture methamphetamine).