Do you have a source for that? This doesn't make sense to me since it relies on more than a hundred different countries to enforce them, it'd be impossible to keep anything they do a secret
Search for the Thomas Lubanga and Mr Jean-Pierre Bemba Gombo cases. The ICC can issue 'sealed' (secret) warrants and tell the countries very late in the process.
Yeah, in practice any such warrant will eventually leak, but it's still a risk for anyone who might be on the other end which de facto creates limits to anyone who might fall under suspicion.
Do you have a source for that? This doesn't make sense to me since it relies on more than a hundred different countries to enforce them, it'd be impossible to keep anything they do a secret