Talks between the Polish government, Poland's National Spirit Industry Council (KRPS) and the Sejm Treasury Committee may result in a fall in taxes on the domestic market, according to reports in the local press.   The Polish spirits industry has been arguing that the high taxes, which jumped 33%in 2000, has been at the centre of the growth of the black market, which in turn has stifled the legal domestic producers. The poor performance of the country's vodka producers has been at the root of Poland's on-going difficulties in finding buyers for the privatisation of the industry.