Croatia - 2006 Party Finance Law

Title Article 16
Chapter III. PROHIBITION OF FINANCING AND PREFERENTIAL TREATMENT
Article

16

Political parties shall not exert political or any other pressure against natural and legal person when collecting contributions (donations) to finance their work.
Political parties shall not promise any political or other counterservices, benefits or personal benefits to natural and legal persons when collecting voluntary contributions (donations) to finance their work.

Categories - Party finance (Private funding)
Source http://aceproject.org/ero-en/regions/europe/HR/the-act-on-the-financing-of-political-parties/view