Forensic Science Ch. 2 And 3

Front 1

Evidence

Back 1

something that tends to establish or disprove a fact. Evidence can include documents, testimony, and other objects

Front 2

Testimonial Evidence

Back 2

What is said in court by a competent witness; also called direct evidence or prima facie evidence

Front 3

Physical Evidence

Back 3

Tangible items that tend to prove some material fact; also called real evidence

Front 4

Indirect Evidence

Back 4

Evidence providing only a basis for inference about the disputed fact.

Front 5

Circumstantial Evidence

Back 5

Evidence based on suggestion rather than personal knowledge or observation.

Front 6

Questioned or Unknown Sample

Back 6

material that has been collected from a known location but is of unknown origin.

Front 7

Known or Control Sample

Back 7

Material that comes from a proven or known source.

Front 8

Individual Evidence

Back 8

Material that can be related to a single source; individualization always involves a comparison.

Front 9

Class Evidence

Back 9

Material that can be associated only with a group of items that share properties or characteristics.

Front 10

Probative Value

Back 10

The ability of evidence to prove something that is material to a crime.

Front 11

Crime Scene

Back 11

Any place where evidence may be located to help explain events

Front 12

Modus Operandi

Back 12

The characteristic method of operation of a criminal; sometimes referred to as MO

Front 13

Accelerant

Back 13

A flammable substance used to help start a fire.

Front 14

Chain of custody

Back 14

A written record of all people who have had possession of an item of evidence.