before hand

[syta]

Hi
Does "before hand" mean anything in the sentence below?

The police were tipped off about the bank robbery before hand and so were able to catch the thieves in the act.

Thanks
syta

[Humble]

Hi,
I think beforehand is one word. It means in advance, before the robbery.
Cheers

[syta]

Thanks a lot!
You're right and I didn't guess it should be written as one word.
That is why I couldn't find it in a dictionary.