Can I search a search head from another search head?

I think I already know the answer to this, but here goes: I have a search head that can access my indexer as a search peer. I have another search head in a separate security group that cannot access my indexer as a search peer. Could I connect the two search heads and then somehow search "through" the search heads to the indexer? In other words, could the search head that can't directly connect to the indexer query the indexer through the search head that can? Thanks!