You're making no sense here and you're obviously completely misinformed. The embassy employee who smuggled the bomb was carrying that bomb with him as a protection against criminals that he was about to testify against. He activated it unpurposely. The whole affair is about common criminals and not politics of any kind.

The real question is how you can smuggle a bomb inside a British embassy. Which is an utter disgrace for that embassy's security and for that country. Because British embassy is British territory.
But a British shame doesn't seem to be interesting to you. For you it's all about Croatians this, Croatians that.

Boring and senseless.