11.   I checked the papers.

12.   Police in dark blue camouflage uniforms, armed with automatic weapons, are a frequent sight on the roads as they check the papers of men of all ages.

13.   Since passing through security, I had answered questions and had my papers checked twice.

14.   They check identity papers of all Chinese and sniff soda bottles to make sure they do not contain gasoline.

15.   Police have raided poor neighborhoods reputed to be havens for criminals and set up late night roadblocks to check identification papers.

16.   Police pull over truckers hauling hazardous materials to check their papers.

17.   Police checked identity papers of students who streamed out of the subway to join the protest, making sure they were of high school age.

18.   Police set up surprise checkpoints on roads leading from the West Bank into Jerusalem, stopping motorists to check identity papers.

19.   After the Paris bombing, police teams tried to avoid rough treatment while checking identity papers and using intelligence leads into the inner city.

20.   Armed police monitored several Moscow train and subway stations, stopping people at random to check residency papers.