We discuss tau identification techniques at hadron colliders, and
present the measurements and the searches performed so far.  We report on the
first evidence of ttbar production in the channel containing one hadronically
decaying tau lepton.  We also present a search for the charged Higgs boson in
the tau decay channel, as well as for the leptoquark family containing tau
leptons.  In addition, we underline the importance of tau physics both at
present and future collider experiments.