Fingerprint checks on foreigners arriving in Japan matched five people to an immigration blacklist on the first day, the Justice Ministry said on Wednesday. The five individualsÂ’ fingerprints came up on a list containing around 800,000 names including Interpol suspects and people deported from Japan in the past, the ministry said. It refused to give any details of the five people or say which countries they came from. One of the five is to be deported and the others are still under investigation, a ministry official said. Biometric scanning of almost all foreigners entering Japan was introduced on Tuesday, sparking anger among long-term residents, businesspeople and human rights campaigners. Introduced as an anti-terrorism measure, the system has been criticised for linking foreigners with crime. Opponents demonstrated outside the Justice Ministry on Tuesday.