Skip to content

Activity Proposition

Definition

A stated explanation about actions or transfer, distinct from whose DNA is present. An activity question concerns actions, such as direct contact or transfer through an intermediary. It requires circumstances and data relevant to those alternatives.

Context
Evidence interpretation

For example, direct handling and transfer through another item are competing activities that cannot be distinguished solely by naming a DNA contributor.

Identifying a DNA contributor does not establish the activity by which their DNA arrived. Keep contributor and activity propositions separate.

Related terms

Azoospermia
The absence of spermatozoa from ejaculated semen, resulting from obstructive causes (vasectomy, ductal blockage) or non-obstructive causes (testicular failure). Azoospermic semen contains...
Differential Extraction
A DNA extraction method used for sexual assault evidence that separates sperm cells from epithelial cells before cell lysis, yielding two DNA...
PSA / P30
Prostate-specific antigen, also called p30, is a protein targeted by some assays used in forensic semen-related examination. Its interpretation depends on the...
Substrate Comparison
A sample used to investigate relevant background on an item, distinct from process blanks. Material from an appropriate part of an item...

Explained in