Day-to-Day Responsibilities
Receive and log biological evidence from police and investigating officers, keeping a documented chain of custody.
Extract DNA from samples such as bloodstains, saliva, hair roots and tissue, using standard laboratory methods.
Measure DNA quantity and quality before profiling, and repeat tests where samples are weak or degraded.
Run PCR amplification and STR profiling, then read and interpret results from genetic analysers.
Compare crime-scene profiles with suspect and victim reference profiles, and with databases where the law allows.
Write detailed technical reports and, when called, explain methods and results in court as an expert witness.
Follow quality and accreditation rules, including calibration, controls, audits and contamination checks.


