enhanced disclosure

I have recently read one job offer advertisment on internet and I have come across this two sentences:

Successful applicants are required to provide an enhanced disclosure. Employer will meet disclosure expense

Questions:

1. What does an "enhanced disclosure" mean?

2. What does "Pension available" mean? Does it mean accommodation?

Find out about Enhanced Disclosure here:
http://www.disclosure.gov.uk/Default.aspx?page=1871

In the travel industry a pension refers to a small hotel or boarding house, but in the context of employment, pension refers to something else. It's for when you retire - for your old age. It's a regular stipend paid by the government to retired people.