OC Suspects role
- obtain info about suspect and POI as identified
- profiling and investigating suspect/pOI to enable OC to establish their involvement
- seeking evidence to cover the elements of the offence
- dealing with possible defences that may be raised
three categories of suspect management
ID and profiling
K9 and termination
interviewing
who is a suspect
POI who has gained added status because of a direct or indirect connection to the circumstances of the crime.
connection may relate to motive, oppurtunity or means
Initial briefing with OC suspect
- circumstance of offence, analysis of scene/witness evidence
- POI full details/descriptions/MO/crime signatures
Aspects that influence priorities of suspect
Relative weight of evidence against them
Likelihood of them leaving the area
How may suspects be ID
Area canvass
Notings
Fingerprints/DNA
Witnesses
CHIS
what is a FACES sketch
a computerised facial ID system used to compile a likeliness of an offender from the description supplied by witness
How to identify a suspects residence
NIA
Local enquiries
reconnaissance of area
Surveillance
Monitoring a phone
what is a TIE category
Selection a common characteristic shared by a group of people which may include the offender. This will depend on the circumstances of the crime.
examples of passive data generators
CCtV, personal computer info, telco, subscriber info, door security systems, toll records
what must ensure during interview
- conducted in accordance with IISG
- monitored by supervisor or experienced to ensure key points are covered
- ensure any explanation is sought from the suspect in relation to any exhibits found
what evidence may be seized under lawful authority
stolen property, suspect clothing, weapons, evidence in plain view or uncertain status
what must a doctor do when examining suspect
note injuries
take any samples as identified as necessary by OC (mek, blood, saliva, hair, swabs, fingernail scraping)
firearm residue swabs *up to 3hrs
can force be used to conduct a medical exam
yes, that is for evidential material reasonably believed to be on the outcome of the suspects body
Confirming ID of suspect
fingerprints, foot/palm prints
Blood for DNA
Photographs of full body with distinctive identifying features such as tattoos or scars
hand writing
Psychiatric factors for police to establish
whether the suspect understood the nature and quality of their actions and whether they realised their actions were morally wrong
what to cover off in report to crown registrar regarding mentally impaired person
circumstances of arrest, summary of offence
previous criminal history, mental history
Symptoms and duration of suspects current mental illness
what to do if alibi offered by suspect
make enquiries to determine veracity of alibi to confirm or rebut evidence
where possible corroboration of the alibi should be sough from forensic or other sources that are independent from the suspect
OC suspect to brief team should include
- the circumstances of the offence- analysis of the scene and witness evidence
- the full details of all POI and any suspect including descriptions provided by witnesses
- whether any particular crime signatures have been identified
