The Elusive Concept of Dangerousness:The State of the Art in Criminal Legal Theory and the Necessity of Further Research

Preventing future crime has become an increasingly dominant function of the criminal law of many liberal democracies. This “preventive turn” has led to a profound debate on the legal and ethical boundaries of the “preventive state.” However, the concept at the core of preventive justice—the dangerousness of the offender—has attracted relatively little attention in the current debate. This is remarkable, as the legal establishment of dangerousness permits intrusive preventive measures, such as preventive detention for an indeterminate period of time. In the past, various concepts of dangerousness have been developed by criminal law scholars. We discuss these concepts in a chronological order to demonstrate how the meaning of dangerousness has evolved over time, and how it has been shaped by concurrent developments in forensic psychiatry and penology. Our description of the state of the art of legal scholarship on the concept of dangerousness also shows the lack of a fully developed theory of dangerousness, and therefore the necessity of further research. We identify five “aspects” of the concept of dangerousness on which scholars have widely diverging views. These five aspects are intended to guide further research on the concept of dangerousness in preventive criminal law

An optimal architecture for a DDC

Digital down conversion (DDC) is an algorithm, used to lower the amount of samples per second by selecting a limited frequency band out of a stream of samples. A possible DDC algorithm consists of two simple cascading integrating comb (CIC) filters and a finite input response (FIR) filter preceded by a modulator that is controlled with a numeric controlled oscillator (NCO). Implementations of the algorithm have been made for five architectures, two application specific integrated circuits (ASIC), a general purpose processor (GPP), a field programmable gate array (FPGA), and the Montium tile processor (TP). All architectures are functionally capable of performing the algorithm. The differences between the architectures are their performance, flexibility and energy consumption. In this paper, we compared the energy consumption of the architectures when performing the DDC algorithm. The ASIC is the best solution if digital down conversion is constantly required. When digital down conversion is needed only parts of the time, the Altera Cyclone II is the best solution due to its smaller technology size. In the spare time, the reconfigurable architectures can be reconfigured for other tasks of today's multimedia devices

Legal insanity and risk:An international perspective on the justification of indeterminate preventive commitment

Particle-laden gravity flows, called turbidity currents, flow through river-like channels across the ocean floor. These submarine channels funnel sediment, nutrients, pollutants and organic carbon into ocean basins and can extend for over 1000’s of kilometers. Upon reaching the end of these channels, flows lose their confinement, decelerate, and deposit their sediment load; this is what we read in textbooks. However, sea floor observations have shown the opposite: turbidity currents tend to erode the seafloor upon losing confinement. Here we use a state-of-the-art scaling method to produce the first experimental turbidity currents that erode upon leaving a channel. The experiments reveal a novel flow mechanism, here called flow relaxation, that explains this erosion. Flow relaxation is rapid flow deformation resulting from the loss of confinement, which enhances basal shearing of the turbidity current and leads to scouring. This flow mechanism plays a key role in the propagation of submarine channel systems

Legal insanity and risk:An international perspective on the justification of indeterminate preventive commitment

Particle-laden gravity flows, called turbidity currents, flow through river-like channels across the ocean floor. These submarine channels funnel sediment, nutrients, pollutants and organic carbon into ocean basins and can extend for over 1000’s of kilometers. Upon reaching the end of these channels, flows lose their confinement, decelerate, and deposit their sediment load; this is what we read in textbooks. However, sea floor observations have shown the opposite: turbidity currents tend to erode the seafloor upon losing confinement. Here we use a state-of-the-art scaling method to produce the first experimental turbidity currents that erode upon leaving a channel. The experiments reveal a novel flow mechanism, here called flow relaxation, that explains this erosion. Flow relaxation is rapid flow deformation resulting from the loss of confinement, which enhances basal shearing of the turbidity current and leads to scouring. This flow mechanism plays a key role in the propagation of submarine channel systems

The elusive concept of dangerousness: The state of the art in criminal legal theory and the necessity of further research

Preventing future crime has become an increasingly dominant function of the criminal law of many liberal democracies. This “preventive turn” has led to a profound debate on the legal and ethical boundaries of the “preventive state.” However, the concept at the core of preventive justice—the dangerousness of the offender—has attracted relatively little attention in the current debate. This is remarkable, as the legal establishment of dangerousness permits intrusive preventive measures, such as preventive detention for an indeterminate period of time. In the past, various concepts of dangerousness have been developed by criminal law scholars. We discuss these concepts in a chronological order to demonstrate how the meaning of dangerousness has evolved over time, and how it has been shaped by concurrent developments in forensic psychiatry and penology. Our description of the state of the art of legal scholarship on the concept of dangerousness also shows the lack of a fully developed theory of dangerousness, and therefore the necessity of further research. We identify five “aspects” of the concept of dangerousness on which scholars have widely diverging views. These five aspects are intended to guide further research on the concept of dangerousness in preventive criminal law