in England and Wales, a Crown Prosecutor,

in Scotland, the Lord Advocate or a procurator fiscal,

in Northern Ireland, the Director of Public Prosecutions for Northern Ireland,

in any part of the United Kingdom, a police officer of at least the rank of superintendent,

shall authorise the further detention under section 41 of a specified person for a specified period, and

shall state the time at which it is issued.

with the time of his arrest under section 41, or

if he was being detained under Schedule 7 when he was arrested under section 41, with the time when his examination under that Schedule began.

the application for the warrant is an application for a warrant specifying a shorter period; or

the judicial authority is satisfied that there are circumstances that would make it inappropriate for the specified period to be as long as the period of seven days mentioned in sub-paragraph (3).

in England and Wales, F3. . . a District Judge (Magistrates’ Courts) who is designated for the purpose of this Part F4by the Lord Chief Justice of England and Wales F22. . . ,

in Scotland, the sheriff, and

in Northern Ireland, a county court judge, or a resident magistrate who is designated for the purpose of this Part F5by the Lord Chief Justice of Northern Ireland F22. . . .

the holder of one of the offices listed in Schedule 1 to the Justice (Northern Ireland) Act 2002;

a Lord Justice of Appeal (as defined in section 88 of that Act).

during the period mentioned in section 41(3), or

within six hours of the end of that period.

there are reasonable grounds for believing that the further detention of the person to whom the application relates is necessary F17as mentioned in sub-paragraph (1A) , and

the investigation in connection with which the person is detained is being conducted diligently and expeditiously.

to obtain relevant evidence whether by questioning him or otherwise;

to preserve relevant evidence; or

pending the result of an examination or analysis of any relevant evidence or of anything the examination or analysis of which is to be or is being carried out with a view to obtaining relevant evidence.

relates to his commission of an offence under any of the provisions mentioned in section 40(1)(a), or

indicates that he is a person falling within section 40(1)(b).

be given an opportunity to make oral or written representations to the judicial authority about the application, and

subject to sub-paragraph (3), be entitled to be legally represented at the hearing.

he is not legally represented,

he is entitled to be legally represented, and

he wishes to be so represented.

the person to whom the application relates;

anyone representing him.

that the hearing of the application must be conducted, and

that all representations by or on behalf of a person for the purposes of the hearing must be made,

to see and hear the judicial authority and the making of representations to it by other persons; and

to be seen and heard by the judicial authority.

it has been notified by the Secretary of State that facilities are available at the place where the person to whom the application relates is held for the judicial authority to conduct a hearing by means falling within sub-paragraph (5); and

that notification has not been withdrawn.

the person to whom the application relates, and

anyone representing him.

evidence of an offence under any of the provisions mentioned in section 40(1)(a) would be interfered with or harmed,

the recovery of property obtained as a result of an offence under any of those provisions would be hindered,

the recovery of property in respect of which a forfeiture order could be made under section 23 F21or 23A would be hindered,

the apprehension, prosecution or conviction of a person who is suspected of falling within section 40(1)(a) or (b) would be made more difficult as a result of his being alerted,

the prevention of an act of terrorism would be made more difficult as a result of a person being alerted,

the gathering of information about the commission, preparation or instigation of an act of terrorism would be interfered with, or

a person would be interfered with or physically injured.

the detained person has benefited from his criminal conduct, and

the recovery of the value of the property constituting the benefit would be hindered if the information were disclosed.

the person to whom the application for a warrant relates, and

anyone representing him.

in England and Wales, a Crown Prosecutor,

in Scotland, the Lord Advocate or a procurator fiscal,

in Northern Ireland, the Director of Public Prosecutions for Northern Ireland,

in any part of the United Kingdom, a police officer of at least the rank of superintendent,

begins with the time specified in sub-paragraph (3A); and

in the case of a warrant specifying a period which has not previously been extended under this paragraph, the end of the period specified in the warrant, and

in any other case, the end of the period for which the period specified in the warrant was last extended under this paragraph.

the application for the extension is an application for an extension by a period that is shorter than is so required; or

the judicial authority F29... is satisfied that there are circumstances that would make it inappropriate for the period of the extension to be as long as the period so required.

the time of his arrest under section 41, or

if he was being detained under Schedule 7 when he was arrested under section 41, the time when his examination under that Schedule began.

a person (“the detained person”) is detained by virtue of a warrant issued under this Part of this Schedule; and

his detention is not authorised by virtue of section 41(5) or (6) or otherwise apart from the warrant.

if he has custody of the detained person, release him immediately; and

if he does not, immediately inform the person who does have custody of the detained person that those matters no longer apply in the detained person's case.