This article aims to show how reform of the law on terrorism not only has the power to create new criminal procedures, it can also create a distinct, parallel field operating alongside general criminal law. This parallel configuration presents certain unique features and processes which merit their own typology – namely, anti-terrorism criminal law (ATCL). First, the article discusses how states have responded to terrorism through reform of four key arenas: military law, immigration law, administrative law and criminal law. Comparison is then drawn between the United States and Israel in their respective approaches, showing that Israel has executed far more sweeping and significant reforms over the last four decades, mainly in criminal procedure. Examples are given to illustrate how Israel's evolving anti-terrorism legislation – and specifically, the new Counter-Terrorism Law of 2016 – changed the criminal procedural landscape to such a degree that it constituted the new field of ATCL. I contend that this move was anti-liberal in its definition and targeting of terror suspects, and in its pursuit of emergency aims and intelligence gathering rather than liberal criminal law objectives. Further, I show that liberal theory struggles to explain the integrated change model that Israel has implemented in its counter-terrorism reforms, and that the theoretical framings of Carl Schmitt and Michel Foucault may explain it more effectively.