𝐎𝐫𝐝𝐞𝐫𝐬 𝐟𝐫𝐨𝐦 𝐭𝐡𝐞 𝐏𝐫𝐞𝐬𝐬 𝐂𝐨𝐧𝐟𝐞𝐫𝐞𝐧𝐜𝐞 𝐨𝐟 𝐎𝐜𝐭𝐨𝐛𝐞𝐫 𝟐𝟒, 𝟏𝟗𝟑𝟗.

Directive No. 1306
"Regarding the treatment of the Polish question, the following applies: Detailed reports on the treatment of the Poles by the German occupation authorities are undesirable. All reports must stand under the leitmotif: Establishment of order, elimination of the chaotic state of affairs that the Polish state had brought about in all areas. It must be made clear to even the very last dairymaid [Kuhmagd] in Germany that Polishness is equivalent to subhumanity. [Untermenschentum] Poles, Jews, and Gypsies stand on the same inferior human level.

​If this tenor is abandoned by the German press and a principle of tolerance toward Polishness arises, then within a few years we would bring about a racial infiltration of Germany by Polishness, which would be extraordinarily dangerous for Germandom. It is now not appropriate to compose profound observations and leading articles about the lack of culture in Poland and the Polish subhumanity. [Untermenschentum] Rather, this tenor should always sound only like a leitmotif and occasionally appear in fixed terms, such as "Polish economy" [mismanagement], "Polish degeneracy," and the like, until everyone in Germany whether a gullible farmworker or an intellectual already views every Pole in their subconscious as vermin [Ungeziefer]. ​This directive is explicitly given via the Propaganda Ministry to all newspapers."

Source: BArch ZSG 101/14 Nr. 934-1712 "Bestellungen aus der Pressekonferenz v. 24. Oktober 1939". p.249. [Bundesarchiv]

@Hateslav