  New insights into our understanding of the semirelativistic excitation of
atomic hydrogen by electronic impact have been made possible by combining the
use of polarized electron beams and intense laser field. The paper reviews
relativistic theoretical treatment in laser-assisted electron scattering with
particular emphasis upon spin effects. Different spin configurations for
inelastic electron-atom collisions is also discussed. The role of laser field
in such collision is of major importance and reveals new information on the
dynamics of the collision process. The examined modern theoretical
investigations of such relativistic laser-assisted collisions have shown that
the need for experimental data is of a paramount importance in order to asses
the accuracy of our calculations.
