Police constables The primary purpose of a police constable is protecting life and property , preserving orders. A role of police constable is a person holding a particular office, most commonly in criminal law enforcement you could be working closely with communities providing visible presence to reassure and deter crime; conducting patrol duties on foot , by car and by bicycle;liaising with community groups and individuals or gaining knowledge on an area to identify individuals and locations at risk of being involved in crime. Police constables provide and support with appropriate initial and ongoing front line response to a wide range of incidents that may include complex and confrontational situations , assessing immediate risk, threat and harm to determine a proportionate response in the line of law and police guidance.