Another sign of dissent could be detected in the last days of "really existing socialism", when protesting crowds sang official songs, including national anthems, to remind the powers of their unfulfilled promises.
Film from cameras equipped with mobile automatic number plate recognition (ANPR) is being analysed to establish whether a pattern can be detected of vehicles on the fatal nights.
And leftwing magazine Krytyka Polityczna detected "vulgar antisemitic tropes" in one character.
The disproportionately high death toll in the Mediterranean, the report concludes, "reflects a dramatic increase in the number of migrants trying to reach Europe", with more than 112,000 irregular migrants detected by Italian authorities in 2014 – almost three times as many as in 2013.
As an undetectable means of bumping someone off, poison has fallen steeply out of favour in recent times, forensic technology having advanced to such a degree that the presence of even the smallest quantities of any toxic agent in a corpse will now almost inevitably be detected.
"They would have no power to impound the notes, but they would inform the Inland Revenue and the police of any suspiciously large volume of banknotes which they detected.
If a representative of the NUM could be detected entering this country with a suitcase full of banknotes, it might be possible to arrange for him to be stopped and searched by Customs.
Turkeys flash frozen at 0F can be served up to a year later, with no detected change in quality.
However, experts have detected a shift in the government's attitude towards Prevent, with a realisation on the part of policy-makers and security professionals that overall counter-terrorism efforts were lacking initiatives to improve community cohesion.
Last weekend one detected signs of panic in the ranks: much concern about so-called "secular stagnation" and "the new mediocre" with regard to the sluggish world economy.
But the detailed polling suggests the gap between Labour and the SNP in its heartland seats is far closer than the 17-point average detected in national polling, with Labour sources describing that finding as "encouraging, but we're not saying 'great, high five'".
