The term regular member, or "Regular", refers to the more than 1220 regular police constables who are trained, attested and paid officers of the Force, and include all the ranks from Constable to Chief Constable. They are responsible for investigating crime, and have the authority to make arrests. Regulars are responsible for general policing duties and serve in a variety of operational and administrative roles within the Force, including: major crime investigations, emergency response, forensic identification, forensic collision reconstruction, bike patrol, explosives disposal and police dog services. Also included are administrative roles including corporate services (finance, HR, etc.), policy analysis, public affairs and professional standards.