When you enter a job site now you are asked to complete background checks before your considered for employment. Generally this takes a few days to a week to complete which can take alot of time for the person trying to get a job quickly. What you should think about however is that if their doing this check they have already most likely screened you and you have probably passed the first hurdle. The expense of doing the back ground check means they wont just do one on everyone but people prescreened. If your asked to sign a paper for this then you can count your lucky stars, your probably in.