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References
1.“I Believe ” by
Hyde
Douglas
.
2.“Polizei ,” by Meister Adam Bender of Frankfurt am Main.
3.“Colour Capsules ,” by
Carver
E. C.
Captain, The Police Journal , vol. vi (1933 ), pp. 357 –362 .
4.Report of the Singapore Riot Commission , 1951 , para. 80, p. 28 .
