  We discuss the indirect search for new degrees of freedom beyond the standard
model, within flavour physics. In particular, we analyse the minimal flavour
violation hypothesis and its phenomenological implications, especially the
large-tan beta scenario in supersymmetric models, and also compare it with the
constrained minimal flavour violation scenario. Moreover, we briefly discuss
some recent progress in inclusive b to s transitions and present a status
report of the so-called K-pi puzzle.
