Originally Posted by
oliver2002
Helps to avoid discussions when you are one of the last to board on a full aircraft when LH gate agents are out to snatch and check your luggage.
In Zurich, you can find "Business/First Security" line. Sometimes, they check if you have a First or Business BC or SEN/HON. Last time, they told me through because I had the SEN tag on my carry on luggage.