For example, agriculture includes tasks such as ploughing, herding animals, and machinery maintenance. Suggested task categories for the NDS-IS Level 2 activity agriculture are shown below. A general classification of task has not been developed. Most routine injury surveillance conducted in Australia does not collect any information on alcohol involvement. Elsewhere, testing is subject to police discretion.
Coverage is incomplete, particularly where collection is at the discretion of police.
Recent research in the USA suggests that collection of alcohol information in an emergency department can be practicable and acceptable to clients. The main aim of collecting data on alcohol is to enable assessment of the patterns of alcohol presence and absence in groups of cases of injury. The role of alcohol in individual cases cannot normally be assessed. Some road safety data systems aim to record the alcohol level of all drivers involved in a crash. In many other settings, it is impracticable to obtain information concerning anyone other than the injured person.