lauren metzger: if you don't have self-control and you can't stop yourself from eating a medicated piece of candy, i mean, i kind of think that 's -- that's sort of on you to be responsible, you know, and to consume something properly. you can buy candy in the grocery store if you have a hard time only eating one piece of candy at a time. reporter: what's immediately noticeable -- no one pays with a credit card. everything's in cash, in the u.s., of all places. i find out why in this armored vehicle. philip baca, once a policeman, is now a driver for a security firm carrying huge amounts of dollar bills. philip baca: banks are a little bit leery of taking cash from the marijuana industry, because it would bring extra scrutiny to their bank. and they wouldn't want to deal with any federal prosecution or anything like that. reporter: in these inconspicuous bags, his colleague, matt, picks up the money for the tax authorities. doesn't it feel a little bit like a concealer's job what you are doing? matt: it's a little bit different. but all we're doing is moving money so our clients can pay