This article describes the features of child homicide offenders' previ
ous contact with professional agencies and the incidence of prior phys
ical violence towards their victims. This is based on an examination o
f 48 cases notified to the Director of Public Prosecutions in 1984 in
which children had been killed by parents or parent-substitutes in Eng
land and Wales. Professional agencies had been involved with two-third
s of the offenders. Women's contacts were usually with medical agencie
s, and men's with social agencies. Of those cases with prior agency co
ntact, whilst almost two-thirds involved a history of violence towards
the child, in only a third of the cases had the reason for agency con
tact explicitly included concern about physical abuse. In fact, the mo
st frequent reason for agency contact was concern about the offender's
mental health. Agencies had taken action in two-thirds of the cases s
een by them; this tended to be psychiatric treatment for women and chi
ld protection measures for men. A quarter of the offenders seen by pro
fessionals had been hostile to this intervention. The above findings r
un counter to the popular stereotype (fostered by the child death inqu
iries) that child-killers will have had extensive contact with social
agencies and explicitly concerning physical abuse. Professionals need
to be aware of more 'subtle' warning signals in identifying potentiall
y filicidal parents.