Navigation systems banned in Switzerland?

[Ped]

George,

Can you elaborate on this:

http://www.astra.admin.ch/dokumentation/00109/00113/00491/index.html?lang=de&msg-id=10094

As I read it (German is not my best :-) ) navigation systems that are 
capable of warning against speed traps are banned in Switzerland and may 
be confiscated by the authorities if found, destroyed and the owner 
heavily fined. Now, I don't know a lot about navigation systems (I use 
the simple but effective http://nav4all.com/ on my cell phone) but from 
what I've heard most systems can warn against stationary speed traps and 
some systems can warn against police operated (movable) speed traps if 
connected to a cell phone sms based service.

What is going to happen if you are pulled over by customs or a patrol 
car and they spot your TomTom or Garmin or whatever? Will they take it 
into their possession trying to establish whether it's braking the 
rules, or? What navigation systems can be used in CH without the risk of 
becoming a criminal?

I have to admit I took a look in the calendar, but no - it's not the 1st 
of April yet... :-)

Ped
'96 "Black Stealth" GPZ
Denmark