Media playback is unsupported on your device

Eryk Pelka: 'I want them to suffer the same pain as Daniel'

2 August 2013 Last updated at 22:53 BST

The mother of Daniel Pelka, Magdelena Luczak, and and her partner, Mariusz Krezolek, have been jailed for life for the four-year-old's murder.

Daniel Pelka's biological father, Eryk Pelka, has reacted with anger at the abuse of his son - but Daniel's grandmother has blamed the British authorities for not intervening earlier to stop her daughter from killing him.

Steven Evans spoke to Eryk in Poland.

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.