The Marcus 2012 paper references a 1999 Human Rights Watch report that has a few more details:
“The propagandist proposes two techniques that were to become often used in Rwanda. The first is to “create” events to lend credence to propaganda. He remarks that this tactic is not honest, but that it works well, provided the deception is not discovered. The “attack” on Kigali on October 4-5, 1990 was such a “created” event, as were others – the reported discovery of hidden arms, the passage of a stranger with a mysterious bag, the discovery of radio communications equipment – that were exploited later, especially during the genocide.
The propagandist calls his second proposal “Accusation in a mirror,” meaning his colleagues should impute to enemies exactly what they and their own party are planning to do. He explains, “In this way, the party which is using terror will accuse the enemy of using terror.” With such a tactic, propagandists can persuade listeners and “honest people” that they are being attacked and are justified in taking whatever measures are necessary “for legitimate [self-] defense.” This tactic worked extremely well, both in specific cases such as the Bugesera massacre of March 1992 described below and in the broader campaign to convince Hutu that Tutsi planned to exterminate them. There is no proof that officials and propagandists who “created” events and made “accusations in a mirror” were familiar with this particular document, but they regularly used the techniques that it described.
The Marcus 2012 paper references a 1999 Human Rights Watch report that has a few more details:
“The propagandist proposes two techniques that were to become often used in Rwanda. The first is to “create” events to lend credence to propaganda. He remarks that this tactic is not honest, but that it works well, provided the deception is not discovered. The “attack” on Kigali on October 4-5, 1990 was such a “created” event, as were others – the reported discovery of hidden arms, the passage of a stranger with a mysterious bag, the discovery of radio communications equipment – that were exploited later, especially during the genocide.
The propagandist calls his second proposal “Accusation in a mirror,” meaning his colleagues should impute to enemies exactly what they and their own party are planning to do. He explains, “In this way, the party which is using terror will accuse the enemy of using terror.” With such a tactic, propagandists can persuade listeners and “honest people” that they are being attacked and are justified in taking whatever measures are necessary “for legitimate [self-] defense.” This tactic worked extremely well, both in specific cases such as the Bugesera massacre of March 1992 described below and in the broader campaign to convince Hutu that Tutsi planned to exterminate them. There is no proof that officials and propagandists who “created” events and made “accusations in a mirror” were familiar with this particular document, but they regularly used the techniques that it described.
From: Human Rights Watch, Leave None to Tell the Story: Genocide in Rwanda, 1 March 1999, 1711, available at: http://www.refworld.org/docid/45d425512.html