Vendar pa se, z odstopanjem od prejšnjih določb, v primeru, da med rutinskim testiranjem črede ena ali več živali reagira pozitivno na tuberkulinski test in velja, da vzrok za to ni goveja tuberkuloza, sum(-i) na tuberkulozo v celoti razišče(-jo), pri čemer se zlasti izsledi in preveri čreda, ki je bila na gospodarstvu prisotna v času testiranja in, če pristojni organ meni, da je to potrebno, katera koli čreda, ki je bila na gospodarstvu prisotna pred tem, ter opravijo vse preiskave, vključno s pregledi po zakolu in laboratorijskimi preiskavami.
However, by way of derogation, if during a routine herd test one or more animals react positively to a tuberculin test, and bovine tuberculosis is not considered to be the cause of this reaction, the suspected case(s) of tuberculosis shall be fully investigated, including in particular the tracing and checking of the herd of residence at the time of the test and of any previous herd considered necessary by the competent authority and all examinations including appropriate post-mortem tests and laboratory examinations.