  The tunability of the helium-helium interaction through an external electric
field is investigated. For a static external field, electric-field induced
resonances and associated electric-field induced bound states are calculated
for the $^4$He-$^4$He, $^3$He-$^4$He, and $^3$He-$^3$He systems. Qualitative
agreement is found with the literature for the $^3$He-$^4$He and $^3$He-$^3$He
systems [E. Nielsen, D. V. Fedorov, and A. S. Jensen, Phys. Rev. Lett.
{\bf{82}}, 2844 (1999)]. The implications of the predicted electric-field
induced resonances for $^4$He-$^4$He on the wave packet dynamics, initiated by
intense laser pulses, are investigated. Our results are expected to guide next
generation experiments.
