  Based on the theoretical framework of generalized eikonal approximation we
study the two-nucleon emission reactions in high $Q^2$ electro-disintegration
of $^3He$. Main aim is to investigate those features of the reaction which can
be unambiguously identified with the short range properties of the ground state
nuclear wave function. To evaluate the differential cross section we work in
the formalism of the decay function which characterizes the property of the
ground state wave function as well as the decay properties of final two nucleon
spectator system. Our main motivation here is to explore the accessibility of
two-- and three--nucleon short range correlations in $^3$He as well as to
isolate unambiguously single and double rescattering processes in the reaction
dynamics. Our analysis allowed us also to identify new approaches for
investigating the role of the practically unknown three-nucleon forces in the
ground state wave function of $^3He$.
