“66. Thus, it is not a question of asking whether any officer could have made the decision but I must direct myself to DS Murphy and his grounds. Ms Ventham fought valiantly to persuade me that any objective assessment of the factors justified the necessity of the arrest. I am not so persuaded. DS Murphy conceded that on a scale this offence was at the lower end. In those circumstances I simply do not accept that it was reasonable for the officer to have arrested the Claimant from the outset. He could have proceeded with a voluntary interview and then if necessary arrested the Claimant if circumstances dictated such. The reason opined by DS Murphy for not doing so on his analysis applies in every case-namely that the Claimant would be free to leave if he found any topic too difficult. Further this was not a case where, had a decision to conduct a voluntary interview been made, the officer would necessarily have intended to arrest the Claimant. Whilst I accept had such occurred that would have led to delay but on the facts of this case I cannot see that any delay would have impeded any investigation. I do not consider that DS Murphy’s view that there was some urgency to progress the investigation was justified. Further any interview, whether voluntary or otherwise, would have been taped. 67. I also do not accept that the need to establish the Claimant’s true identity was a reasonable ground justifying the necessity of the arrest. The Claimant would have had to provide his particulars for the purpose of the voluntary interview and whilst that would not have been as forensic as fingerprints or DNA the Claimant’s full name and address as available on his passport could have been run through the police national database. 68. I am also not satisfied that bail conditions provided an objective justification on the particular facts of this case albeit I accept that bail conditions can form part of section S24(5)(e) notwithstanding the ground (d) provision. Whilst on the basis of the CRIS report DS Murphy did not know that the Claimant had agreed not to contact Ms A there were other means at the officer’s disposal to ensure there was no contact without arrest. He could have issued a harassment warning. 69. DS Murphy said that in his experience the Claimant was unlikely to volunteer his phone. I accept DS Murphy’s evidence but I am not satisfied that belief, when objectively reviewed, was reasonable. Firstly the text messages and received calls would have been evident on Ms A’s phone and secondly on DS Murphy’s analysis every case involving telephoning evidence would justify arrest. 70. I accept Ms Ventham’s submissions as to the facts in Hanningfield and R(L). However, both those legal authorities show the need for the trial judge to objectively scrutinise the officer’s reasoning. Indeed, as Ms Ventham opined, each case is indeed fact specific. When such an analysis is applied to this case I am not satisfied that when viewed objectively the combination of factors whether individually or collectively identified by DS Murphy satisfied the test of necessity. He could, and should, have conducted a voluntary interview. If that had not proceeded in a satisfactory manner he could then have arrested the Claimant. Indeed, that is the whole purpose of S29. 71. It follows that in the light of my findings the Defendant has failed to discharge its burden on the second limb of Hayes. The arrest was therefore unlawful. The Claimant’s case succeeds on his pleaded claim of false imprisonment.”
“(2) If a constable has reasonable grounds for suspecting that an offence has been committed, he may arrest without a warrant anyone whom he has reasonable grounds to suspect of being guilty of it. … (4) But the power of summary arrest conferred by subsection (1), (2) or (3) is exercisable only if the constable has reasonable grounds for believing that for any of the reasons mentioned in subsection (5) it is necessary to arrest the person in question. (5) The reasons are— … (e) to allow the prompt and effective investigation of the offence or of the conduct of the person in question;” (e) to allow the prompt and effective investigation of the offence or of the conduct of the person in question;”
“Where the liberty of the subject is at stake, the decision of police officers is open to review by the court. Whilst the expertise, knowledge and operational judgment of the police officers is to be respected, what is required is careful scrutiny by the court. The second stage of the test therefore amply protects the liberty of the subject.”