TOKYO — The Japanese government will conduct its second anti-terrorism test at two busy Tokyo railway stations to boost security measures ahead of the Olympics and Paralympics, the transport ministry said Tuesday.

Following a similar test at a Tokyo subway station in March, an experiment at JR Tokyo Station’s bullet train ticket gate on Dec. 4 will use trained dogs to detect hazardous materials.

At Shinjuku-Nishiguchi Station on the Toei Subway’s Oedo Line from Nov. 25 to 28, body scanners will be introduced to detect hazardous objects that are hidden in clothing, according to the Land, Infrastructure, Transport and Tourism Ministry.

The previous test was conducted at Tokyo Metro’s Kasumigaseki Station, which was attacked by the AUM Shinrikyo cult with nerve gas in 1995.

The tests are conducted as the transport ministry is tightening measures to ensure safety at stations and trains following a fatal knife attack on a bullet train in June last year.

Under tightened security measures for public transportation, the government started banning unwrapped knives on trains, buses and taxis from April this year.