  One interpretation of how the classical world emerges from an underlying
quantum reality involves the build-up of certain robust entanglements between
particles due to scattering events [Science Vol.301 p.1081]. This is an
appealing view because it unifies two apparently disparate theories. It says
that the uniquely quantum effect of entanglement is associated with classical
behaviour. This is distinct from other interpretations that says classicality
arises when quantum correlations are lost or neglected in measurements. To date
the weakness of this interpretation has been the lack of a clear experimental
signature that allows it to be tested. Here we provide a simple experimentally
accessible scheme that enables just that. We also discuss a Bayesian technique
that could, in principle, allow experiments to confirm the theory to any
desired degree of accuracy and we present precision requirements that are
achievable with current experiments. Finally, we extend the scheme from its
initial one dimensional proof of principle to the more real world scenario of
three dimensional localisation.
