Who checks the signatures?
Poland
Answer
Agency responsible for the administration of direct democracy mechanisms
Source
Law on Nationwide Referendum adopted on 14 March 2003, Article 63
http://pkw.gov.pl/g2/i/00/8.pdf (in English - but not updated)
http://isap.sejm.gov.pl/DetailsServlet?id=WDU20030570507 (in Polish – the Parliament’s website)
Law on the manner of executing legislative initiative by the citizens adopted on 24 June 1999, Article 12
http://www.sejm.gov.pl/prawo/inicjat.htm (in Polish - the Parliament’s website)
Comment
NationalElectoral Commission
