Only relevant offences, or foreign offences, will be considered in the determination of your application.
Whichever certificate or search you provide as part of your application must have been issued within one calendar month of the submission of your application for a personal licence, otherwise your application will be rejected and you will have to start again. Regulation SI 2005/41 7(1)(b) refers.
In addition to providing the criminal records certificate or search, you must provide a separate declaration with your application (the relevant form for you to complete is headed Schedule 3Regulation 7(1)(c).
A basic Criminal Records Bureau check can be obtained from https://www.gov.uk/government/publications/basic-checks