A client called me on a Friday afternoon: he had received a summons from the SECLO because a former employee was claiming unpaid overtime. The first thing I asked him wasn't how much they were claiming, but something else: "Do you have a way to prove what time that person arrived and left?". There was a long silence. That pause, in practice, is already half a lost conciliation. Here I explain what the SECLO is, why almost every labor claim in CABA goes through there, and what attendance documentation you need to have ready before the legal notice arrives.