As my campaign is set in Denver, my PCs often cross frontiers...how would you deal with non cyberware forbidden items like maglock passkey or anything else?
They can hide it in the car, but any scanner could see it, couldn't it?

Unless looking specifically for a device most people scanning are just going to see "small electronic device" not "maglock passkey." If they're suspicious of you they may ask what it is, but probably not.

If you do need to hide it a small box with a short range (signal 0) jammer would work. It's up to the GM to decide whether a jammer creates a noticable hole in a scanner's field or just a dead zone where nothing being scanned for can be seen. I'd probably give the guy running the scanner some sort of opposed test vs. the jammer (maybe jammer rating x 2 vs. Logic + Scanner rating?)

...or you just stuff it in a box full of hand-held game consoles and other random electronic kitsch. Sort of hiding it in plain sight, if you will.

I tend to regard it as not dangerous unless you are seen using it, or it is found during a search for something else - but if it is found, oh boy are you in trouble.

Make up some on the fly tests. I'd say Intuition + Electronics for something like this. Add in bonus pool for jammers or other things the character might try. Make the number of hits the target threashold for the scanner to find the item.

Or have an electronics kit with you and keep it in two or three pieces (depending on how fast you need it). Even if they're looking specifically for a Maglock Passkey they're not going to be looking for one that's currently in pieces.

Palming.

Just how big is a maglock passkey? My ID badge for all the E-Doors at the office is about the size of a playing card. I sure someone with large hands could palm it quite easily.

True.. I was thinking more of the "something elses" than the passkey. Like, a drone, or shotgun under the seat. I'm thinking Palming isn't going to cover that.

I disagree James. Head over to page 326. Theres 3 little pictures of stuff there, next to the maglock passkey description. I'd say the leftmost object, is the maglock sequencer, because it is used to defeat keypad locks. The bottom object with the skull on it is the passkey, and the upper object is an autopicker. Therefore, passkeys are the size of regular maglock passcards.

Thanks for the pic! I stand corrected.