Connections between collective action and common mime are often politi
cally sensitive: regimes may benefit to the extent that they can dismi
ss collective action as the work of criminals; criminals may benefit t
o the extent that they can justify their actions as politically motiva
ted. Although there is widespread disagreement about the exact relatio
nship between collective action and crime, the dominant sociological v
iew in recent years has been that the incidences of the two are unrela
ted. Our analysis of annual changes in African American civil rights-r
elated collective action and African American and white arrest rates (
robbery, homicide, burglary), 1955-91, reveals a more complex relation
ship: collective action and crime rates are positively related until t
he mid-1970s for both African American and whites but unrelated, or ne
gatively related, afterward.