'Joy-riding' is the term used, somewhat inappropriately, for the offen
ce of taking a vehicle without the owner's consent. In certain areas,
mainly deprived inner-city estates, there has been an increase in this
crime. The aim of this study was to investigate ifs impact on the wor
kload of an inner-city teaching hospital's busy accident and orthopaed
ic departments. In this prospective study, all patients admitted to ho
spital as a result of road-traffic accidents (RTAs) were identified du
ring a 9 month period. A total of 1576 patients were admitted to the t
rauma unit. One hundred and fifty-two admissions were as a result of R
TA and 20 (13 per cent) of these patients had injuries as a result of
car crime. Of this group, eight were severely injured (ISS > 16) and s
ix of these were innocent bystanders. Three patients (one joy-rider an
d two innocent bystanders) died as a result of car crime. The average
length of hospital stay was IZ days (1-62 days) and the hospital in-pa
tient costs were estimated to be at least pound 5200 per patient. Inju
ries related to car crime results in a significant amount of work and
financial cost to the National Health Service.