All reports of package-uses-debhelper-but-lacks-build-depends for the archive. The extended description of this tag is:
If a package uses debhelper, it must declare a Build-Depends on debhelper or on the debhelper-compat virtual package. For example:Build-Depends: debhelper (>= 12~) Build-Depends: debhelper-compat (= 12)
This tag has not been emitted in any package tested by Lintian.