After evading prosecution successfully for many years he was finally arrested by Chief Inspector Edward Drew and convicted in 1900. His stock was destroyed and he retired from business.
References
Jon R. Godsall, "The Tangled Web: A Life of Sir Richard Burton", Troubador Publishing Ltd, 2008, ISBN1-906510-42-3, p. 533
Patrick J. Kearney, "A history of erotic literature", Macmillan, 1982, ISBN0-333-34126-0, pp. 116–117
Patrick J. Kearney, Gershon Legman, "The Private Case: an annotated bibliography of the Private Case Erotica Collection in the British (Museum) Library", J. Landesman, 1981, pp. 153,171,312
Peter Mendes, "Clandestine erotic fiction in English, 1800-1930: a bibliographical study", Scolar Press, 1993, ISBN0-85967-919-5, pp. 12–13
Lisa Z. Sigel, "International exposure: perspectives on modern European pornography, 1800-2000", Rutgers University Press, 2005, ISBN0-8135-3519-0, p. 116