Kenji Shibuya, a senior adviser to Tedros Adhanom and a professor at King's College London in the UK, severely criticizes the Expert Meeting that Japan couldn't expand the PCR tests because of their old way of thinking about classifying "returnees" and "contacts."[45][46][47] Shibuya criticized the Expert Meeting as not independent of the government.[48] Shibuya was concerned that Japan may have underestimated the number of people infected, as Japan had a low number of PCR tests and selected samples with a high probability of infection in interviews with CNN and the New York Times.[5][49][50] Shibuya advocates that PCR tests should be carried out to all the people of the country.