Gerhardus Antonius van Hamel (1842-1917) and the new horizons of criminal justice under penal positivism

Resumen

The aim of this contribution on G.A. van Hamel, one of the cofounders of the I.K.V. is double. First, what were the international schools of thought that inspired him, as a pupil of the neoleading figure of penal positivism a nd social defenc classic school, to become a e and what was his own impact in this international arena? Second, to which extent was he able to elaborate, in his scholarly and policy work, a proper criminal justice theory of social defenc e?