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Table 1 Temporal units

From: A comparison of methods for temporal analysis of aoristic crime

Notation

Temporal unit

t start

The earliest time at which an offence could

 

have occurred.

t end

The latest time at which an offence could

 

have occurred.

t range

The period of time between tstart and tend.

t mid

The time halfway between tstart and tend.

t random

A random time between tstart and tend.

t actual

The actual time at which an offence occurred

 

(usually derived from CCTV).

t known

The actual time at which an offence occurred

 

if that time was known at the

 

time the crime was reported to police.

t estimate

The estimated time (between tstart and tend)

 

that the offence occurred, as calculated by

 

the various estimation methods.