Gas masks are understandable; particularly in tyhe case of Clandestine Lab Teams [CLET] entering suspected meth labs, where all sorts of unstable and lethal chemicals are likely to be encountered, frequently stored under conditions that are not only unsafe, but often just a hair's bredth away from explosive.
The problem is, some police agencies in the past have lied about a suspected presence of meth or other drug making equipment in order to obtain no-knock warrants and make *dynamic* entries. Sometimes this is done to enhanmce the budgets or public profile of the drug raiding teams, especially around budget time, sometimes it's done because informants have lied or exaggerated, and sometimes just because some door-kickers think that kicking in doors is fun. And sometimes, as at the Waco church burning, the presence of a meth lab is falsely claimed to obtain assistance or equipment from outside agencies.
