railway protection force

The Railway Protection Force became suspicious of my short excursion to Agra - I was dirty and unwashed and claiming to have been staying in Agra overnight despite the fact that I carried no bag. I was searched; revealed was a large toilet roll stuffed into one pocket, a Japanese phrasebook and wads of various foreign currencies (mostly Dong and Yuan). They confiscated none of it and said "you are free to go now, dear".