Perhaps they do this to control politicians etc.
https://www.theguardian.com/world/2002/may/05/dutroux.featuresreview
"Something is rotten in the state of Belgium. Six years after the arrest of Marc Dutroux, the country's notorious paedophile, no date has been set for his trial and the case remains painfully unresolved.
In 1995, when two eight-year-old girls were kidnapped, Dutroux, a convicted sex offender, was a prime suspect from the start, yet he wasn't arrested for 14 months. By that time, four of his captives - including the two girls - were dead. Since his arrest, 20 potential witnesses connected with the case have died in mysterious circumstances, fuelling suspicions of a cover-up reaching the highest levels."