Although threats towards witnesses are often spoken of, research shows that it is mainly the victims of crime that are affected. Within organised crime, it is apparently unlikely that a threat will become known to the authorities — if the person affected has personally committed offences and is involved in the crime committed by the network, it is presumably unlikely that the person will be willing to report the crime.
Threat of violence is the most common form of interference in a judicial matter — actual violence occurs less often. On the other hand, the threat can have an amplified effect because it is often made in connection with violence. It is sometimes difficult to differentiate interference in a judicial matter from the basic crime, such as when a person has been assaulted and threatened regularly for a long time. This can sometimes lead to interference in a judicial matter not being reported.
It is by means of the consequences for the judicial proceedings that unlawful influence of crime victims and witnesses becomes visible. Some people stand their ground in spite of pressure, whilst others change their stories or no longer want to participate in the legal proceedings. This risks making investigations and criminal prosecutions more difficult and therefore makes it possible for perpetrators to continue their criminal activities.