[srinivasan]

Generally - the "willful, illegal transportation of migrants into another country".

If you're interested in reading more into how cartels operate, I'd highly recommend the book Narconomics by Tom Wainwright - https://www.amazon.com/Narconomics-How-Run-Drug-Cartel-ebook...

Editing in an excerpt from Chapter 9: Diversifying into New Markets: “The basic option is to sneak over the frontier with a guide on foot, hoping to avoid the US Border Patrol’s sentries. For those with deeper pockets, or without the stamina to wade through rivers or cross deserts and mountains, there is a luxury option: crossing “in the line,” meaning walking up to the immigration desk with fake documents. Coyotes buy a secondhand visa, and make the client up to look like the person in the photo. A guide surreptitiously directs the migrant to whichever line is moving fastest—a sign that the person on duty is giving the documents only a cursory check. No detail is overlooked: the coyotes even put souvenirs in their clients’ bags to make them look like day-trippers.”

Excerpt From: Tom Wainwright. “Narconomics.” iBooks.