Within the context of handling the problem of untraceable convicted persons, a legislative proposal makes it possible to collect cell material from suspects for DNA analysis already during the investigation phase. At this time, cell material cannot be collected until someone has been convicted of a serious crime. However, practice shows that not all of these convicted persons can be traced. The legislative proposal therefore regulates that cell material can already be collected after the suspect has been arrested by the police. This cell material is stored securely and may only be used to draw up a DNA profile following a conviction.