I'm sure you won't need to
But if you suspect you might need to use the data on their in a complaints or criminal procedure later, then either don't use the laptop at all, or if you really have to, take an image of the hard drive first.
( Labia Majora You keep on talking but it makes no sense at all, Fri 8 Oct 2010, 12:21, 2 replies, latest was 15 years ago)

Thanks for that. We will need to use it, but I will copy the entire hard drive on to Dropbox and an external drive first.

(lkjshaglkasjdhglkhjz lkcvl; g;aodh;owih, Fri 8 Oct 2010, 12:23, Reply)

I'd go one better
See if you can take a whole disk image (using Ghost or a similar program), as that will capture the free space of the drive too, which might contain useful deleted data.
( Labia Majora You keep on talking but it makes no sense at all, Fri 8 Oct 2010, 12:26, Reply)

Will do. Ta.

(lkjshaglkasjdhglkhjz lkcvl; g;aodh;owih, Fri 8 Oct 2010, 12:29, Reply)

ON THEIR?
I hope you die.
(wellgroomedwookiee is a filthy-minded hobgoblin, Fri 8 Oct 2010, 12:33, Reply)