Emme voi luottaa Tomin haltuun jotain tällaista.

[kirkeby]

English Translation

We can’t trust Tom with something like this.

I don’t understand the use of the word ‘haltuun’ in this sentence.

https://en.wiktionary.org/wiki/haltuun

[morbrorper]

You could think of “trusting it into Tom’s possession”.

[kirkeby]

Okay. I find it strange that ‘haltuun’ is a postposition though. It would make more sense if it was a noun in illative.