A recently unearthed document from 2001 describes the DEA’s perception of rave culture.

Non-profit news site MuckRock’s recent investigation of scientist Alexander “Sasha” Shulgin, aka The Grandfather of Ecstasy, and his relationship with the US’s Drug Enforcement Administration (DEA) is not just a fascinating look into the world of club drugs, but it includes the DEA’s guide to raves, as Gawker points out.

The info sheet was assembled by an unnamed sergeant who is clearly an authority on warehouse parties and other raves of its ilk, as evidenced by his breakdown of dance music genres:

(His authority actually comes from attending a one-day seminar called “The Rave & Club Culture/Designer Drugs” taught by the California Narcotics Officer Association. If you have ever taken or taught this class, please email me at claire@factmag.com because I have a bunch of questions for you. Please, no mixtapes.)

Here are some other gems about ravers and the culture (and designer drugs) cobbled together in this document:

(We imagine the updated version of this is “Check your Facebook Event invites” because they’ll be there. Too many of them.)

(Pay phones! #tbt)

Here is what to expect from the actual ravers *one hundred cry-laugh emojis*:

“Massages and head rubs are popular and feel as good as sex to ravers.” lol

The whole thing, which you can check out here (starting at page 217; at 225 it starts to get a little dark), is a pretty funny read. We won’t spoil it for you, but there is a part where they break down “PLUR.”