The Custodial Institutions Agency (Dienst Justitiële Inrichtingen - DJI) is responsible for the incarceration of offenders, the restoration of the legal order and reducing the risk of recidivism. DJI thereby provides a unique contribution to the security of society. An individualised approach of offenders and a focus on staff expertise are at the heart of the DJI strategy.
Knowledge management can make a significant contribution to achieving these objectives. Knowledge management aims at injecting penal policy as well as practice with knowledge.
To obtain this knowledge DJI has appealed to science for quite some time. This has resulted in various forms of cooperation. This article describes the principles of this cooperation and gives many examples of ongoing cooperation. Knowledge management within DJI has to deal with two bottlenecks in particular: (1) the articulation of the exact need for knowlegde (‘asking the right questions’) and (2) the use of available relevant knowledge on behalf of penal policy and practice.

The dynamic traffic control is an important detection method for Dutch police officers. In December 2015 the appeal court in Amsterdam stated that dynamic traffic control is illegal. This article explains what dynamic traffic control is and which varieties exist. Secondly the article debates whether or not dynamic traffic control is in conflict with the prohibition of the misuse of powers. It is explained that this depends on what kind of dynamic traffic control is carried out and which vision is followed.