You have a strong historical premise. The next step depends on what already exists and what remains uncertain. A drafted script needs a different kind of scrutiny from an idea still being developed; a disputed attribution may require a narrower and deeper investigation than either.
You have a script and need to test its claims
Choose a Script Evidence Audit when the words are already on the page and you need to establish which factual assertions can stand. The useful unit is a material claim: a date, attribution, allegation, quotation or causal statement on which the narrative depends.
The output connects each finding to a production decision: retain, qualify, attribute, revise, remove or research further. It helps an editor see where a line can remain and where the available source supports something narrower.
You have a subject and need its factual foundation
Choose a Research Dossier when you are developing an episode, chapter, treatment or defined historical question. The work establishes a chronology, identifies the source base and records contradictions before assumptions become embedded in the narrative.
For example, a team planning a programme about a historical trial may need to separate the sequence of events, contemporary reporting and later retellings before deciding on its opening scene. That is a development question, rather than a request to check a finished script.
The obvious sources leave the central question unresolved
A Deep Research Dossier suits contested attribution, difficult source lineage or a material gap that ordinary desk research cannot close. The investigation follows the unresolved question, including whether apparently separate accounts depend on the same earlier source.
Deeper work does not guarantee a conclusive answer. The deliverable records what can be established, the access limitations and the next worthwhile enquiry. Physical archive visits, paid retrieval, licensing and travel require separate agreement where needed.
Scope the decision before the research
A useful enquiry identifies the project, intended audience, material already held, precise question and deadline. If a particular sentence, scene or attribution is blocking a decision, include it. A defined problem makes it possible to agree useful boundaries and an appropriate deliverable.
Before commissioning, inspect the Crippen sample dossier and the public evidence audits. They show how source status, findings and limitations are recorded.
Request a scope for your project. Scope, timetable, exclusions and fee are agreed before work begins.