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by barkingcat 2276 days ago
This is probably thinking too high tech for some basic human int collection. It's easy enough to collect imei numbers at a checkpoint. It's also easy enough to find out from family members and friends and business connections (everyone works for someone, has a family, and friends, and even if none, there's always a bank account that paid for the airline ticket somewhere, attached to a passport).

Think low tech. Taiwan didn't even have a computerized registry when I was born, so everything was done by hand (I can confirm this because when I had to look up my birth certificate, it wasn't in the records! and they had to look up the records by hand - but the records exist and are easily findable by humans)

also, don't neglect a simple phone call from the police to your boss - that's a super easy way to find out what's going on. Especially for Western folks who seem to be tied to their work.

1 comments

> It's easy enough to collect imei numbers at a checkpoint.

True enough, I guess. Require that you turn all devices on, then either require unlock and look at the IMEIs yourself, or pass the person through a Stingray in an RFID cage.

But I would assume that if Taiwan was doing that, people would notice (requiring turning devices on is a very unusual step) and would have mentioned online somewhere that that’s something that happens when you visit Taiwan.

Also, it still won’t help if this immigration-evader turned super-spy is rolling their spoofed IMEI regularly.

(Also, where would they get the information on who your boss/company is? From your customs form? That’s one of those things too expensive to verify for every case ahead of time, so they won’t bother until they actually want to find you; in other words, that’s one of those things that’s perfectly easy to lie about. From your visa, presuming you need one? Information like that could be entirely outdated by the time you visit.)

"Also, where would they get the information on who your boss/company is?"

They ask you at the customs checkpoint. Human intelligence collection is the custom official's job. Even when coming through Canadian Customs border, they do (and are able to) ask directly: who do you work for. What do you do? What is your job? Do you have family here? Where do you live? How old are you?

Those are level 1 questions for crossing the border at pretty much any country.

Driving through the Peace Arch border crossing into the US, I've been asked all of those questions.