Software Engineering is an interesting mix of practice and theory. On the theory side, you should make a habit of browsing / googling for things that are a good intersection of interesting to you and novel. Be forewarned, some of the common places to get information (like stackOverflow) can be very intimidating.
The standard expiration date for most checks is 180 days (six months) and personal checks are included in this policy. In the United States, banks are privately owned and not government operated so banks do have the right to refuse your deposit if there happens to be any suspicion of the item's negotiability.
There is no official expiry date for a DBS check. Any information revealed on a certificate will be that held by police at the time the check was issued. You should check the date of issue on the certificate to decide whether to request a new one.BS (Disclosure and Barring Services) checks replaced the Criminal Records Bureau (CRB) checks on 1st December 2012. The changes are as follows: 1  On 1st December 2012 the Criminal Records Bureau (CRB) merged with the Independent Safeguarding Authority (ISA). 2  The new name is the Disclosure and Barring Service (DBS).