Documents for use in Slovak Republic should be certified by the UK Foreign and Commonwealth Office by way of Apostille.
The fee is £75 per document and documents will be processed the same day if lodged by 2.00p.m.
The Consulate of the Slovak Republic is located at:
25 Kensington Palace Gardens,
Tel. 020 7243 0803
Fax 020 7313 6481
Web Site: http://www.slovakembassy.co.uk