“137. Cross-border powers of arrest etc. … (3) If the conditions applicable to this subsection are satisfied, any constable of a police force in Northern Ireland who has reasonable grounds for suspecting that an offence has been committed or attempted in Northern Ireland and that the suspected person is in England or Wales or in Scotland may arrest without a warrant the suspected person wherever he is in England or Wales or in Scotland… … (6) The conditions applicable to subsection (3) above are – (a) that the suspected offence is an arrestable offence; … (7) It shall be the duty of a constable who has arrested or, as the case may be detained, a person under this section… … (b) if he arrested him in England or Wales, to take the person arrested … to the nearest convenient designated police station in Northern Ireland or to a designated police station in Northern Ireland in which the offence is being investigated;… (9) In this section— ‘arrestable offence’ has the same meaning as in thePolice and Criminal Evidence (Northern Ireland) Order 1989 (‘the 1989 Order’;‘designated police station’ has the same meaning as in thePolice and Criminal Evidence Act 1984 or, in relation to Northern Ireland, as in the 1989 Order; and ‘constable of a police force’, in relation to Northern Ireland, means a member of the Royal Ulster Constabulary or the Royal Ulster Constabulary Reserve…”
“Arrest without warrant: constables 26. (1) A constable may arrest without a warrant— … (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 paragraph …(3) is exercisable only if the constable has reasonable grounds for believing that for any of the reasons mentioned in paragraph (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; …”
“to be uniform, self-contained, clear and to strike an appropriate balance between, on one side, the need for protection of the public and proper enforcement of the criminal law and, on the other side, protection of the individual against undue interference with his liberty. The scheme takes into account the principles of article 5, which therefore do not require separate consideration. Wednesbury principles are also accommodated within the scheme by the requirements that where suspicion that a person is about to commit, is committing or has committed an offence, is relied on as the basis for the person's summary arrest, there must be reasonable grounds for the suspicion, and by the express limits on the exercise of the power of summary arrest contained in s 24(4) to (6). A police officer who carried out an arrest in bad faith, or in circumstances where his decision was irrational in the Wednesbury sense, would not be able to satisfy those provisions.”
“On the other hand, an objective assessment still has to be made, albeit having regard to the factors which actually informed any decision made at the relevant time. Having rehearsed and reconsidered those factors, I have come to the conclusion that the requirement of ‘necessity’ as laid down by Parliament has not, on any realistic interpretation of the word, been met. Summary arrest was never going to have any impact on ‘the prompt and effective investigation’ of the claimant’s credit card expenses. It is not for a judge to second-guess the operational decisions of experienced police officers, but in the circumstances of this case I cannot accept that there was any rational basis for rejecting alternative procedures, such as those adopted successfully by the Metropolitan Police. There were simply no solid grounds to suppose that he would suddenly start to hide or destroy evidence, or that he would make inappropriate contacts. There was only the theoretical possibility that he might do so. I can, therefore, see no justification for bypassing all the usual statutory safeguards involved in obtaining a warrant.”
“Although the chief officers of police are answerable to the law, there are many fields in which they have a discretion with which the law will not interfere. For instance, it is for the Commissioner of Police of the Metropolis, or the chief constable, as the case may be, to decide in any particular case whether inquiries should be pursued, or whether an arrest should be made, or a prosecution brought. It must be for him to decide on the disposition of his force and the concentration of his resources on any particular crime or area. No court can or should give him direction on such a matter.”
“An undertaking in respect of any person who provides evidence to the Inquiry, that no evidence he or she may give before the Inquiry relating to the events of Sunday30 January 1972 , whether orally or by written statement, nor any written statement made preparatory to giving evidence, nor any documents produced by that person to the Inquiry, will be used to the prejudice of that person in any criminal proceedings (or for the purpose of investigating or deciding whether to bring such proceedings) except proceedings where he or she is charged with having given false evidence in the course of this Inquiry or with having conspired with, aided, abetted, counsel, procured, suborned or incited any other person to do so”
“First, considerations of operational effectiveness lead me to conclude that the interviews should take place in the jurisdiction where the investigation is based. The interview strategy will require a minimum of five officers to be deployed to the interviews of each of the claimants. The interview process will involve the use of a volume of material, including a significant volume of paper records. Unsurprisingly, some of the material is sensitive. As the interviews develop, it may be necessary for further material to be collated and deployed. All of the relevant material is currently stored and accessible in Northern Ireland where the investigation team is based. In my judgment, in order to further objective of a prompt and effective investigation, it is important that this critical evidence gathering stage takes place in circumstances which properly allow the investigators to access the investigation’s resources and to respond to any developments. This requires the interview process to take place in Northern Ireland. In contrast, significant practical difficulties would arise if the PSNI were required to conduct interviews in England, having been prohibited from gathering evidence in the way I believe to be appropriate and effective. Conducting the interviews in England would require a significant and costly shift of the investigation’s manpower and other resources out of Northern Ireland for a lengthy, but uncertain, period of time. Transporting the relevant interview material and storing it in England, particularly when the material contains sensitive information will raise significant issues relating to security, manpower and cost. Furthermore the investigators conducting the interviews would be remote from the centre of the investigation’s resources and would not have ready access to them, as may be required. The overall result is that the investigation resources would be deflected and the investigators will be faced with practical constraints and a loss of flexibility. … Second whilst I have had regard to the Claimant’s stated willingness to cooperate, and their history of cooperation, the fact is that a voluntary procedure would not enable the investigators to control, direct or structure the interview process with the certainty and effectiveness that I believe is necessary, particularly when the interview strategy involves interviewing seven individuals. Given the seriousness of the matters and investigation, and the complex nature of those matters, in my judgment it is not appropriate for the police, in undertaking this critical step in the evidence gathering stage of the investigation, to be dependent on the co-operation of the Claimants, and to remain dependent on that co-operation. The interview process is likely to be lengthy, and circumstances may develop. In my judgment to be effective, it is necessary for the police to be able to conduct the interviews in accordance with their interview strategy and to be in a position to control and manage events to ensure that this takes place. I believe this objective can only be achieved if the interviews take place under conditions of arrest. Third, whilst the course and outcome of any interviews with the claimants cannot be prejudges, it is likely I would wish to consider the imposition of post-interview bail conditions. This would not be possible if the interviews take place on a voluntary basis. In addition, if a decision were made to charge a claimant, it would be necessary for an arrest to be made, and for the claimant in question to be transferred to Northern Ireland. In this regard it is right to observe that there are seven separate claimants. The course of the interviews, the question of continued cooperation, and matters concerning bail and charging may be different in each case. In summary the investigation is likely to develop, and the timing of and factors involved in any developments cannot at this stage be identified with precision. In these circumstances, I consider the promptness and effectiveness of the investigation would be hampered if it is prohibited from making an arrest.”