Foucault & resistance

I am doing a study on the emergence of the present European moratorium
on approval of genetically modified crops and foods.

Within a general Foucaultian approach, I am inter alia seeking to
explore how far Foucault can help in understanding the possibility and
the techniques of resistance. At this point, I am particularly
interested in Foucault's notion or rule of the 'tactical polyvalence of
discourses'.

MY QUESTIONS: 1) Does anyone know of empirical studies applying this
rule of the tactical polyvalence of discourses?
and
2) Does anyone know of empirical studies on social resistance more
generally using a Foucaultian approach?

Thanking in advance for responses to this query,

Jesper Grolin.

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