Peter had been involved in politics in Czechoslovakia, supporting the political movement which hoped to humanise Communist rule by introducing basic civil freedoms, an independent judiciary, and other democratic institutions.
Peter had been kasangkot sa pulitika sa Czechoslovakia, sumusuporta sa pampulitikang kilusan na kung saan inaasam na humanise Komunista patakaran sa pamamagitan ng nagpapakilala basic sibil kalayaan, ng isang malayang panghukuman, at iba pang mga demokratikong institusyon.