Police in the Netherlands produced a new edition of a wall calendar meant to hang in correctional facilities featuring the details of numerous cold cases that have yet to be solved. The first edition, produced in 2017, featured one case per week, and led to 78 tips to help investigators. About 32 of those tips were helpful, and helped police re-open nine cases, authorities announced.
The Dutch police decided to spread their 'cold case calendar' among all 30 thousand detainees in Dutch prisons. An experiment involving the calendar, which contains details about 52 cold cases - one for each week, being spread in five prisons proved to be successful, ANP reports.
On Monday the Dutch police distributed calendars with information of 52 cold cases to prisoners in five prisons. They hope that the prisoners will have information that can lead to new insights in the unsolved cases, the police announced on their website.