Some cases include the 1950s -1970s Kincora scandal and the 1981 Peter Hayman affair, both in the U.K.; and the Finders' cult and the Franklin scandal in the U.S. in the late 1980s. Just as these cases did not end in convictions, the pedophile and accused child-trafficker Jeffrey Epstein remained at arms' length for years.

"For almost two decades, for some nebulous reason, whether to do with ties to foreign intelligence, his billions of dollars, or his social connections, Epstein, whose alleged sexual sickness and horrific assaults on women without means or ability to protect themselves… remained untouchable," journalist Vicky Ward wrote in The Daily Beast in July.