References from the book:

Webster, C (2008) Understanding Race and Crime. Maidenhead. Open University Press.

Bowling, B. and Phillips, C. (2002) Racism, Crime and Justice. Harlow. Longman.
For books covering these issues particularly from a British perspective (but taking rather different standpoints).

Tonry, M. (ed) (1997) Ethnicity, Crime and Immigration: Comparative and Cross-national Perspectives. Chicago. University of Chicago Press.

Marshall, I.H. (ed) (1997) Minorities, Migrants and Crime: Diversity and Similarity across Europe and the United States. London. Sage.
To get a better international comparative perspective on the issues—including insights into national differences in the groups conceived of as ‘ethnic minorities’, the policies pursued in relation to them, and the type of statistical information available—read these two edited volumes.

Further references:

Bowling, B. (1999) Violent Racism. Oxford: Clarendon Press.

Brennan (1999) “Racially Motivated Crime: the response of the criminal justice system” Criminal Law Review 17

Cashmore, E. & McLaughlin, E. (1991) Out of Order? Policing Black People. London: Routledge.
The above texts outline the influence of racism in society as well as its influence on policing.

FitzGerald, M.  (1993) Ethnic Minorities in the Criminal Justice System. London: Home Office.

Gelsthorpe. L (ed.) (1993) Minority Ethnic Groups in the Criminal Justice System, Cambridge: Cambridge Institute of Criminology.
The experiences of ethnic minorities within the criminal justice system, who are often the subject of discrimination. Does this represent institutionalized racism or mistakes and errors?

Genders, E. & Player, E. (1989) Race Relations in Prisons. Oxford: Oxford University Press.
Analysis of the problem of race relations in prison.

Hall, S. et al (1978) Policing the Crisis. London: Macmillan.

Hamm, M. (1993) Hate Crime: International Perspectives on Causes and Control. Cincinnati, OH: Academy of Criminal Justice Sciences/Anderson
Fantastic researcher and writer who has a knack of combining rigorous research with insightful writing.

Holdaway, S. (1996) The Racialisation of Policing. London: Macmillan
Discrimination in the police service and towards the public.
  
Solomos, J (2003) Race and Racism in Britain chs 2 & 3