More than a million people in the UK have a learning disability. A small but significant proportion of these people will come into contact with the criminal justice system because they have offended or have been accused of an offence. This article reports on the perceptions of police officers toward this potentially vulnerable group and their knowledge of issues related to learning disabilities. Interview data were collected from eight police sergeants employed by Humberside Police and analysed using qualitative techniques. The article concludes that further training in the subject area is required. This is likely to be successful in the force under study due to their promotion of positive perceptions toward people with learning disabilities.