  Signature kinematic variables and characteristic concentrations in phase
space of double parton scattering are discussed. These properties should allow
the double parton contribution to $pp \rightarrow b \bar{b} \rm {jet jet} X$ at
Large Hadron Collider energies to be distinguished from the usual single parton
scattering contribution. A methodology is suggested to measure the size of the
double-parton cross section.
