1. It is believed the arrest is necessary
2. To enable the name of the person in question to be ascertained
3. To enable the address of the person in question to be ascertained
4. To prevent the person in question from causing physical injury to himself or any other person
5. To prevent the person in question from suffering physical injury
6. To prevent the person in question from causing loss of or damage to property
7. To prevent the person in question from committing an offence against public decency
8. To prevent the person in question from causing an unlawful obstruction of the highway
9. To protect a child or other vulnerable person from the person in question
10. To allow the prompt and effective investigation of the offence or of the conduct of the person in question
11. To prevent any prosecution for the offence from being hindered by the disappearance of the person in question