Search Legislation

The Road Traffic (Northern Ireland) Order 1995

 Help about what version

What Version

 Help about advanced features

Advanced Features

More Resources

Changes over time for: Section 21

 Help about opening options

Changes to legislation:

The Road Traffic (Northern Ireland) Order 1995, Section 21 is up to date with all changes known to be in force on or before 19 October 2019. There are changes that may be brought into force at a future date. Changes that have been made appear in the content and are referenced with annotations. Help about Changes to Legislation


Changes to Legislation

Revised legislation carried on this site may not be fully up to date. Changes and effects are recorded by our editorial team in lists which can be found in the ‘Changes to Legislation’ area. Where those effects have yet to be applied to the text of the legislation by the editorial team they are also listed alongside the legislation in the affected provisions. Use the ‘more’ link to open the changes and effects relevant to the provision you are viewing.

View outstanding changes

Changes and effects yet to be applied to the whole Order associated Parts and Chapters:

Whole provisions yet to be inserted into this Order (including any effects on those provisions):

Detention of persons affected by alcohol or a drugN.I.

21.—(1) Subject to paragraphs (2) and (3), a person required [F1under Article 18] to provide a specimen of breath, blood or urine may afterwards be detained at a police station [F2(or, if the specimen was provided otherwise than at a police station, arrested and taken to and detained at a police station) if a constable has reasonable grounds for believing] that, were the person then driving or attempting to drive a mechanically propelled vehicle on a road, he would [F3commit] an offence under Article 15 or 16.

(2) [F4Paragraph (1) does not apply to the person if it ought reasonably to appear to the] constable that there is no likelihood of his driving or attempting to drive a mechanically propelled vehicle whilst his ability to drive properly is impaired or whilst the proportion of alcohol in his breath, blood or urine exceeds the prescribed limit.

[F5(2A) A person who is at a hospital as a patient shall not be arrested and taken from there to a police station in pursuance of this Article if it would be prejudicial to his proper care and treatment as a patient.]

(3) A constable must consult a medical practitioner on any question arising under this Article whether a person's ability to drive properly is or might be impaired through drugs and must act on the medical practitioner's advice.

Back to top


Print Options


Legislation is available in different versions:

Latest Available (revised):The latest available updated version of the legislation incorporating changes made by subsequent legislation and applied by our editorial team. Changes we have not yet applied to the text, can be found in the ‘Changes to Legislation’ area.

Original (As Enacted or Made): The original version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.


See additional information alongside the content

Geographical Extent: Indicates the geographical area that this provision applies to. For further information see ‘Frequently Asked Questions’.

Show Timeline of Changes: See how this legislation has or could change over time. Turning this feature on will show extra navigation options to go to these specific points in time. Return to the latest available version by using the controls above in the What Version box.


Opening Options

Different options to open legislation in order to view more content on screen at once


More Resources

Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:

  • the original print PDF of the as enacted version that was used for the print copy
  • lists of changes made by and/or affecting this legislation item
  • confers power and blanket amendment details
  • all formats of all associated documents
  • correction slips
  • links to related legislation and further information resources

Timeline of Changes

This timeline shows the different points in time where a change occurred. The dates will coincide with the earliest date on which the change (e.g an insertion, a repeal or a substitution) that was applied came into force. The first date in the timeline will usually be the earliest date when the provision came into force. In some cases the first date is 01/02/1991 (or for Northern Ireland legislation 01/01/2006). This date is our basedate. No versions before this date are available. For further information see the Editorial Practice Guide and Glossary under Help.