Fair enough. Re arrest lists drawn up in advance: not much in English-speaking MSM but try this:
http://edition.cnn.com/2016/07/16/asia/ivan-watson-turkey-coup/index.html ... gist is that after a long history of Turkish military coups, Erdogan had re-established democratic civilian control over the Military... and then this.
Not in the article but worth reflecting that after the last (successful) 1980 military coup in Turkey, 500,000 people were arrested, hundreds died in prison and 25 were executed. Erdogan's 6,000 arrests probably should be seen in context.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1