Abstract
The idea of interviewing Professor Manuel da Costa Andrade gave me both joy and concern. The first, because he is one of the most qualified criminal lawyers in the world who, in addition to being a great friend, was my master's advisor at one of the oldest universities on the European continent. The Lusitanian professor's dialectical vision of the criminal justice system awakened very important philosophical concerns in me and allowed me to perceive the wonderful world that exists on the periphery of the penal system. Secondly, because my participation in the Journal Cuadernos de Derecho Penal would not be in the comfortable condition of reader, but with the hard mission of producing a content of the level of the interviewee and of the readers of the journal, but that, if it were not precisely for that, would have made me decline the challenge.