Learn how evidence source, handling, transfer, storage and examination should be documented.
This guide provides general educational information. It does not replace legal advice, regulatory guidance or a case-specific assessment.
Why chain of custody matters
Why chain of custody matters should be examined in relation to the specific objective of chain of custody: protecting evidence integrity. The enquiry should use relevant, authorised sources, distinguish verified facts from indicators, and explain where information is incomplete, conflicting or unavailable. Decisions should not rely on a single isolated record when context or corroboration is required.
A proportionate approach records source quality, date, context and practical limitations. Where the matter may affect legal, employment, regulatory, clinical or financial decisions, qualified advisers should interpret the findings within their professional role.
Identify the source
Identify the source should be examined in relation to the specific objective of chain of custody: protecting evidence integrity. The enquiry should use relevant, authorised sources, distinguish verified facts from indicators, and explain where information is incomplete, conflicting or unavailable. Decisions should not rely on a single isolated record when context or corroboration is required.
A proportionate approach records source quality, date, context and practical limitations. Where the matter may affect legal, employment, regulatory, clinical or financial decisions, qualified advisers should interpret the findings within their professional role.
Document collection
Document collection should be examined in relation to the specific objective of chain of custody: protecting evidence integrity. The enquiry should use relevant, authorised sources, distinguish verified facts from indicators, and explain where information is incomplete, conflicting or unavailable. Decisions should not rely on a single isolated record when context or corroboration is required.
A proportionate approach records source quality, date, context and practical limitations. Where the matter may affect legal, employment, regulatory, clinical or financial decisions, qualified advisers should interpret the findings within their professional role.
Control transfer and storage
Control transfer and storage should be examined in relation to the specific objective of chain of custody: protecting evidence integrity. The enquiry should use relevant, authorised sources, distinguish verified facts from indicators, and explain where information is incomplete, conflicting or unavailable. Decisions should not rely on a single isolated record when context or corroboration is required.
A proportionate approach records source quality, date, context and practical limitations. Where the matter may affect legal, employment, regulatory, clinical or financial decisions, qualified advisers should interpret the findings within their professional role.
Record examination
Record examination should be examined in relation to the specific objective of chain of custody: protecting evidence integrity. The enquiry should use relevant, authorised sources, distinguish verified facts from indicators, and explain where information is incomplete, conflicting or unavailable. Decisions should not rely on a single isolated record when context or corroboration is required.
A proportionate approach records source quality, date, context and practical limitations. Where the matter may affect legal, employment, regulatory, clinical or financial decisions, qualified advisers should interpret the findings within their professional role.
Report breaks and limitations
Report breaks and limitations should be examined in relation to the specific objective of chain of custody: protecting evidence integrity. The enquiry should use relevant, authorised sources, distinguish verified facts from indicators, and explain where information is incomplete, conflicting or unavailable. Decisions should not rely on a single isolated record when context or corroboration is required.
A proportionate approach records source quality, date, context and practical limitations. Where the matter may affect legal, employment, regulatory, clinical or financial decisions, qualified advisers should interpret the findings within their professional role.
Define the question, preserve relevant evidence, use proportionate methods and report limitations honestly.