Dutch who provided assistance to the occupier during World War II have long been neglected in historiography. This article portrays Sybren Tulp, a colonial soldier who was appointed chief commissioner after the February Strike, made the force a mainstay of the occupier, and finally succumbed to the efforts of the deportation of the Jews. Remarkably, despite his membership in the NSB (Dutch National Socialist Movement) and the SS, he was popular among the staff. Based on new biographical information, the article examines the extent to which his experiences in the Royal Netherlands East Indies Army influenced his actions. Although Tulp was not involved in large-scale operations, he was confronted with the heroic stories of his superiors about the violent pacification of the interior. The chief commissionership might have been seen as an opportunity to still prove himself. His leadership style and organizational skills reflect his military experience. The article describes the layout of the bunkers and the spaces where necessary supplies were stored. The depiction of the command centers also reflects the prevailing atmosphere, especially during drills. To provide some insight into numbers and scale, the services within the organization and their respective resources are also described. The relaxation that occurred toward the end of the Cold War quickly led to the decline of the B.B. as a protective entity. In hindsight, the question remains whether this rapid and drastic reduction was wise or not.