I'm Belgian (Mother tongue Dutch) so for clatification here is the translation of that quote:
"After one lap on the WC, the UCI checked the bike of Femke at the pit area with a kind of tablet. The bike was immediately sealed and taken away"
While that source doesn't specifically say who took the bike into the pit area, other sources state that it was taken into the pit area by mistake (probably her entourage) and that it wasn't the UCI who took the bike into the ICU.
Thanks. Part of the issue is that there is a distinction between "ride" and "use". By the UCI's definition, putting the bike in the pit is "use" even though she may not have ridden it during that race. Do you interpret the UCI's claim to be that she started with the motorized bike, rode it part of the way through the lap, and then switched to a legal bike?
"After one lap on the WC, the UCI checked the bike of Femke at the pit area with a kind of tablet. The bike was immediately sealed and taken away"
While that source doesn't specifically say who took the bike into the pit area, other sources state that it was taken into the pit area by mistake (probably her entourage) and that it wasn't the UCI who took the bike into the ICU.
http://www.nieuwsblad.be/cnt/dmf20160130_02100012 [dutch]
So in short, it _isn't known_ if she used the bike in the WC, but the UCI _alleges_ that she did.