Look here are the facts:
1. France has no good steak in it.
2. Spain's steak is delicious.
3. A mate of Contador's bought ONE piece of steak in the morning in Spain, then drove 200km to Pau in the middle of summer with that steak in the car.
4. That mate had it in an esky with ice and noone batted an eyelid when some random walked into Alberto's hotel with a "thing" wrapped in paper or something similar, slightly wet and dripping all over the floor from sitting on melting ice for the last 3 hours.
5. Alberto then had that steak cooked and ate it - leaving his team mates to fend for themselves with the crap food they serve in France.
6. Alas, that one steak with a .001% chance of containing clenbuterol did so, in sufficient quantity that it was detectable in Contador's body the next day or he ate it for breakfast / before 10 in the morning or huh I dunno.
7. Alas, the lab used to test Alberto's blood was of a higher calibre than the usual and managed to detect the teeny tiny levels of Clenbuterol.
8. Alberto is innocent.
What is not hard to believe here?