You say you have "been doing some research into what unis will accept the criminology applied diploma". Have you been checking the university web sites themselves? As
@Isobel.jr06 says, if you're applying for universities which specify their entry requirements in terms of UCAS points it's very unlikely to be an issue. However, you say that you're targeting "a top university" and such university
don't tend to specify their entry requirements in terms of UCAS points. Here what a few such universities say about the WJEC Applied Diploma in Criminology:
•
University of Manchester (for LLB Law): "We accept the WJEC Level 3 Applied Diploma in Criminology as equivalent to an A-level if taken alongside two full A-levels from the list of acceptable subjects above." (
source)
•
UCL (not subject-specifc): "The WJEC Level 3 Applied Diploma in Criminology is only accepted for entry to the BSc Crime and Security Science programme, and the Engineering Foundation Year programmes. This qualification is not accepted for any other programme at UCL." (
source)
•
University of Edinburgh (not subject-specifc): "We currently accept the listed Level 3 qualifications in the following subjects: ... WJEC Level 3 Applied Diploma Business; Criminology; Health and Social Care: Principles and Contexts; Medical Science" (
source)
•
University of Bristol (not subject-specifc): "We accept the following WJEC Level 3 Applied Diplomas in place of one A-level: • Business • Criminology
• Food Science and Nutrition • Health and Social Care • Medical Science • Professional Construction Practice • Tourism • Environmental Science
An Applied Diploma must be accompanied by two A-levels, or one A-level and a further A-level-equivalent qualification. It cannot be used to satisfy a subject-specific A-level requirement." (
source)
•
University of Durham (not subject-specifc): "We will consider applicants studying a WJEC Level 3 Applied Diploma for entry to many of our courses. This is considered on a case by case basis." (
source)
So it's clear that there's a range of opinions about it, but the majority are happy with it. You just need to check, for each university to which you're hoping to apply, what
their opinion is.