"Controversial" is not a strong enough word to describe a Czech immigration policy that requires gay asylum seekers to watch straight porn while having the blood flow to their penis monitored. If they become aroused, residency is denied. The test is beyond problematic (what if they're aroused by the naked man?) and also irrelevant because how your penis reacts to porn doesn't change the fact that your perceived or self-identified homosexuality may cause you danger back home. That's what officials should be looking at.
Unsurprisingly, the "phallometric tests" have received backlash from EU human rights groups, and some countries are refusing to deport asylum seekers to the Czech Republic. What's next? Perhaps they'll want to witness immigrants consummate their marriages to verify they're not shams!