You have the right to access to information held about you.

You can do so by making a subject access request.

Information provided under subject access is for personal use only and cannot be used for other purposes.

To request information held by a local police force, please contact the relevant force directly. 

To request information held about you on the Police National Computer (PNC) you need to request an ACRO Subject Access report, which you can do so here https://www.acro.police.uk/Subject-access