SANJAY SINGH TAAK v THE CHIEF CONSTABLE OF NOTTINGHAMSHIRE POLICE

The statutory necessity test for arrest and detention requires an objective assessment of the circumstances known to the officer at the relevant time. Officers need not consider every possible factor or alternative, but they must give some thought to obviously material circumstances and practical, less intrusive alternatives.

Where the suspect is a child, the child’s age, welfare and best interests are central considerations. Arrest must be a measure of last resort and detention must last no longer than necessary. Timing may affect necessity, particularly in a planned arrest of a child. A generic arrest instruction containing inadequate information cannot provide reasonable grounds for arrest, and a custody officer cannot rely on abstract or mistaken risks without examining the actual circumstances.

The claimant appealed against an order made by HHJ Godsmark QC after a jury trial in the Mansfield County Court. The claim alleged false imprisonment arising from the claimant’s arrest at his home at about 5.30 am when he was aged 14, his detention in an adult cell, and his release after interview without charge.

The trial judge accepted that the police had honestly suspected the claimant of robbery, that the arresting officer honestly believed arrest was necessary, and that the custody officer honestly believed detention was necessary. He nevertheless found the conduct reprehensible and lamentable but held that the arrest and detention were lawful.

The appeal concerned whether the statutory requirements of reasonable grounds for necessity had been satisfied, including the significance of the claimant’s age, the timing and circumstances of the arrest, the limited information supplied to the arresting officers, and the custody officer’s mistaken understanding of the investigation.

1. Appeal allowed. The arrest and subsequent detention constituted false imprisonment because the police had not established reasonable grounds for believing that arrest or detention was necessary.
2. Under Police and Criminal Evidence Act 1984, the necessity requirement involves a subjective and an objective limb. The officer must honestly believe that arrest or detention is necessary for a statutory purpose, and there must be reasonable grounds for that belief. The court does not require a complete self-direction on every possible consideration, but the officer must give at least some thought to obviously material circumstances and practical alternatives.
3. The claimant’s age was an obviously material circumstance. A 14-year-old is a child, not merely a teenager, and the assessment had to give proper weight to safeguarding, welfare and best interests. The arrest of a child should be a measure of last resort and detention should last for the shortest appropriate period.
4. The timing of arrest may bear on necessity. In a planned arrest of a child, the fact that arrest was arranged at 5.30 am for the convenience of an investigating officer’s shift was relevant. Necessity had to be assessed at the time of arrest; what might be necessary at one time might not be necessary at another.
5. The arresting officers had insufficient information about the simple alleged offence, the claimant’s alleged role and the investigative need. A generic arrest instruction could not supply objectively reasonable grounds. The officers should have considered alternatives, including a search warrant, voluntary attendance and, in the circumstances, a voluntary search permitted by the claimant’s father.
6. The custody officer also failed to assess the actual circumstances. Reliance on outstanding property and the existence of another suspect, without more, created only a theoretical risk. The mistaken belief that the other suspect remained unapprehended, and reliance on nonexistent investigative tasks, undermined the objective reasonableness of detention. Bail conditions offered an obvious practical alternative.
7. The custody officer’s decision could not cure the unlawful arrest. The court therefore did not need to determine the third ground separately, although it would also have allowed the fourth ground concerning detention.

• High Court (Queen’s Bench Division): Appeal from the order of HHJ Godsmark QC sitting in Mansfield County Court. The order was set aside and the appeal succeeded.