Bell Boys

Bell Boys was a commercial callboy service operated in the Netherlands by Karel Maasdam, who used the operational alias "Alex Privee." The service functioned as an organized network providing minors for sexual exploitation to a paying clientele that Dutch investigators identified as including professionals, academics, and individuals with international connections. Bell Boys operated in Amsterdam and extended its network across the Netherlands, with connections to Belgian and other European pedophile networks documented in the Marc Dutroux investigation period.¹

Operations and Structure

Maasdam operated Bell Boys as a structured commercial enterprise: recruiting vulnerable young males, facilitating their sexual exploitation by paying clients, and maintaining client relationships through the "Alex Privee" identity. The service used the Festival Bar in Amsterdam as one operational venue and maintained other arrangements for client-supplier contact. The organizational model - a broker/facilitator connecting supply (exploited minors) to demand (paying clients) - was characteristic of commercial child exploitation networks documented across Western Europe in the period.

The Bell Boys network intersected with the broader Dutch child exploitation infrastructure. Robert Jan Warmerdam, a witness in the Dutch investigations, testified to knowledge of Bell Boys and its connections to Belgian networks including those around Marc Dutroux. The network's client list extended to Belgium, and the cross-border dimension made it relevant to the Belgian parliamentary inquiry into the Dutroux affair and the conduct of the broader investigation.²

Rolodex Investigation

The Rolodex Investigation (Rolodex-onderzoek), a Dutch police inquiry conducted from the mid-1990s onward, explicitly targeted the network centered on Maasdam and Bell Boys. The investigation identified clients and participants through what appeared to be a "rolodex" or client/contact list maintained by Maasdam, giving the inquiry its name. The investigation identified Henry Hans Holthuis and other Dutch figures as clients or associates within the Bell Boys network.

The investigation's findings and the adequacy of subsequent prosecutions were subjects of political controversy in the Netherlands, with critics alleging that the full client list was not aggressively pursued and that figures with political connections were protected from prosecution - paralleling similar criticisms of the Belgian Dutroux investigation's handling of prominent named individuals.¹