It depends entirely on your role and responsibilities, as well as your clients.
Answered - Assistant Manager (Current Employee) - Leeds, West Yorkshire
Yes they do pre-employment background checks, they check on the integrity and work ethnic of the prospective employee. It takes about 20 minutes to complete the process
Answered - Semi Senior Associate (Current Employee) - Harare, Zimbabwe
KPMG requires an intense background check which can take up to 5-6 weeks.
Answered - Print Assistant Manager (Current Employee) - Canary Wharf, Greater London