Glossary entry (derived from question below)
Swedish term or phrase:
beslagsförbud
English translation:
prohibited siezure
Swedish term
United States
Translator English-Swedish-English
Native in: Swedish 
, English
Works in: English to Swedish, Swedish to English
beslagsförbud
Mar 19, 2014 15:16: Deane Goltermann Created KOG entry
Proposed translations
Sweden
Easy reading - Good writing
Native in: English , Swedish
Works in: Swedish to English
illegal siezure
My suggestion is that you are looking for a way to describe a 'seizure' that is illegal. But your context doesn't indicate what type of 'skriftlig handling' you are dealing with. The Code describes 'privileged' material as the Swe reference below indicates. The correct term for this 'beslag', I'd say for UK, US, and EU is seizure, during investigation of the crime, where confiscation is, in my mind, what is done after or part of a judgement. And now I see Leif is into changing his answer in this direction...
I won't cite the 4th for you...;-) but here's some reading ...
https://www.gov.uk/government/uploads/system/uploads/attachm...
prohibition against illegal seizure
illegal seizure of privileged documents (written material)
| Thank you, this was very helpful. The text I'm translating is referring to instances when seizure is prohibited, for example due to expectations of confidentiality. |
confiscation ban
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Note added at 1 hr (2014-03-15 15:59:30 GMT)
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Google example of usage:
Zeller Seyfert
Confiscation ban on self-researched material of journalists
United States
Technically speaking
Native in: Swedish (Variants: Stockholm, Rikssvenska) 
Works in: English to Swedish, German to Swedish, Danish to Swedish, and 1 more.
prohibition against confiscation
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Note added at 2 hrs (2014-03-15 16:28:36 GMT)
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Legal term or layman's term?
This is another example of the legal term
"Alexander Hamilton supported the prohibition against confiscation contained in the Jay Treaty in the strongest terms..."
Source: https://www.brooklaw.edu/~/media/PDF/LawJournals/BJI_PDF/bji...
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Note added at 2 hrs (2014-03-15 16:55:06 GMT)
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Alternatively "prohibition against seizure" (of documents)
"The Fourth Amendment's role as an absolute prohibition against seizure of documents considered to be within the sphere of..."
Source: http://law.justia.com/cases/alaska/supreme-court/1981/4755-0...
The Fundamental Law ratified and enlarged the exception to the prohibition against confiscation
(AmE) privilege against seizure (of docs.); judgment-proofing (of assets)
or seizure be used as evidence, either as proof that a subsincrimination and the privilege against unreasonable searches and seizures www-bcf.usc.edu/~usclrev/pdf/075403.pdf
United States
Indexing and abstracting services also
Native in: English
Works in: Spanish to English, Swedish to English
prohibition against seizure
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Note added at 1 day5 hrs (2014-03-16 19:46:54 GMT)
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I meant to say "English, Finnish _or_ Swedish," though those languages can of course only be seen one at a time on the web page in question.
http://www.minedu.fi/OPM/Kulttuuri/Museot_ja_kulttuuriperintoe/takavarikointikielto/?lang=en
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