It is interesting to see how all the 'CDE-liberal' countries are on the North Sea and Baltic Sea littorals. Or perhaps its a northern European phenomenon, or somehow related to Protestantism?.
UPDATE 4th November 2018
I have been contacted by a couple of people about this map and have decided to update it. The situation as I read it originally was ambiguous in the Russian Federation, where it seems that while known sites were protected, archaeological sites on private land were not and I was unclear on the position over loose artefacts. I have been told that since 2013 federal law No 245 has been passed and this now means that all movable archaeological objects in the ground, on the ground and underwater have been declared by law as State property (regardless of their registration, origin and relation to the known archaeological sites). 'They are not covered by the civil-legal definition of treasure, and therefore must be unconditionally returned to the state bodies under threat of prosecution'. That's good news and allows me to change the colour of the big patch on the right of the map.
Another change is that for some reason I had Latvia as a liberal country in the same way, but somebody pointed me to a very interesting document which acts as a sort of Red Book for Latvian antiquities (interesting with regard to the 'Viking' [not really] objects that are still flooding eBay from this region) which clarifies that Latvia's colour also needs changing on my map.
Also I was a bit wary of marking Ukraine green on the first version of this map, Sam Hardy however points out (“Black archaeology” in Eastern Europe: Metal detecting, illicit trafficking of cultural objects and “legal nihilism” in Belarus, Poland, Russia and Ukraine- referring to the 2004 Ukrainian 'Law on Protection of Archaeological Heritage'Art. 8-10)
It turns out that Luxembourg has a permit system.
Albania's legislation is a bit unclear to me, but it seems art. 33 and 41-2 of this 2003 law (9048 for the cultural heritage) means artefact hunting is subject to a permit system too.
Also, the position with regards to Norway is unclear (Jostein Gundersen, Josephine M. Rasmussen, Ragnar Orten Lie 2016, ‘Private Metal Detecting and Archaeology in Norway’ Open Archaeology 2016; 2: 160–170). I am leaving it green, but it seems from the article that technically, under existing heritage legislation, a permit is needed to search for archaeological material.
I am struggling a bit with the five Balkan states. Bosnia and Herzegovina has a permit system for excavations on archaeological sites, but I cannot determine whether this also replies for searching for archaeological material where there is no known site, probably though this is the case. Mention is made here (National
report on the implementation of the 1970 Convention on the means of prohibiting
and preventing the illicit import, export and transfer of ownership of cultural
property) however of the problem that reporting finds is not mandatory, so the situation remains unclear. The situation in Macedonia, Serbia, Kosovo, and Montenegro is unknown to me. I'd be grateful for more information to help me fill in the empty areas on this map.