Hi,
I've been offered a new job and yet to be asked about convictions. Am due to start shortly (currently just temping) and its a great opportunity so really want to be able to take it up.

i got a conviction last year which will be spent in april with the new laws.

But am really worried that on day 1 at the new job, i'll be asked to disclose and / or will be presented with a form for a basic / standard / enhanced DBS check. If that happens, i guess i'll have to find a quick reason to resign almost straight away. Sounds silly, but it's better to be safe than sorry.
When i applied for the job, as it's for a very small, newish firm i'd been hoping that they've yet to get up and running with any formal HR procedures so there was a chance i wouldn't be asked THE question - now am scared this won't be the case.

The other option is to not take up the new job offer, carrying on temping (not keen on that - it's a really sh*t job) and wait a couple of months till the conviction becomes spent and then can apply for anything. Just it seems such a waste to turn down this offer.

Anyone been in this position?
Any ways of resigning diplomatically after your first day?
What are the practicalities of getting a DBS check done? How would I know this is happening & would i have any control over that situation?

Thanks a lot for any help anyone can offer.