  We consider pairs of non-interacting quantum particles transmitted through a
disordered medium, with emphasis on the role of their quantum statistics. It is
shown that particle-number correlations measured in transmission are strikingly
sensitive to the quantum nature of the particles when they undergo Anderson
localisation, due to bosonic bunching and fermionic anti-bunching in the
scattering channels of the medium. The case of distinguishable particles is
also discussed.
