All resources relating to 'Reasonable grounds' including guidelines and instructions

S.I made this Official Information request to New Zealand Police

The request was partially successful.

From: S.I

Dear New Zealand Police,

In order to legally invoke a warrantless search, arrest etc, police must have 'reasonable grounds to suspect' or 'reasonable grounds to believe', depending on the specific legislation they are relying on.

I would like to request all instructions, guidelines, policy manual chapters, training documents, legal opinions and any other resources that have been made available to Police relating to:

'reasonable grounds'
'reasonably believes'
'has good cause to suspect'
'reasonable grounds to suspect'
'reasonable grounds to believe'
'probable grounds'
and any other related variation used to justify the Police actions of arresting/searching/investigations in their duties

I am a New Zealand citizen residing in Auckland my entire life so I am more than eligible to request this information.

Yours faithfully,


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From: Ministerial Services
New Zealand Police

Tēnā koe S.I

I acknowledge receipt of your Official Information Act 1982 (OIA) request below, received by Police on 25 June 2022.

Your request is being actioned pursuant to the OIA.

You can expect a response to your request on or before 22 July 2022

Ngā mihi
Ministerial Services
Police National Headquarters

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From: Ministerial Services
New Zealand Police

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Attachment SI IR 01 22 18456 Response.pdf
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Tēnā koe

Please find attached the response to your Official Information Act
request, received by New Zealand Police on 25 June 2022.

Ngā mihi



Ministerial Services |

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Mark Hanna left an annotation ()

It's disappointing that Police has chosen only to release exerpts from the relevant documents, whereas my interpretation of your request was that you had asked for entire documents.

You may want to follow up this request to ask Police to release the entire Police Manual chapters "Arrest and Detention" and "Warrantless powers to search places, vehicles and things", and the Detective Training Programme module "Search and Surveillance Act".

The entire "Arrest and Detention" chapter was released on 17 November 2016, though it may have changed since then:

Likewise, the "Warrantless powers to search places, vehicles and things" chapter was released on 2 May 2013, but it has likely changed in the years since then:

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Mark Hanna left an annotation ()

Police published the entire "Arrest and detention" Police Manual chapter on their website yesterday, with some redactions:

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Things to do with this request

New Zealand Police only: