Private Mail Surveillance Without Warrants
This provision authorizes private postal and courier companies to detain and open mail based on subjective "reasonable suspicion" of customs violations—without judicial authorization, warrants, or independent oversight. This creates a severe chilling effect on private correspondence, particularly for journalists, activists, and civil society organizations who rely on mail for sensitive communications. When combined with Section 39(1)(h)'s prohibition on materials "prejudicial to public order," private operators could intercept political speech or investigative journalism under the guise of customs enforcement, with no appeal mechanism or accountability for wrongful interception.