Tokens: 2
.
The
guarantee
of
the
preventive
function
of
penal
law
,
the
separation
of
State
powers
and
the
avoidance
of
State
arbitrariness
are
the
purposes
of
the
principle
nullum
crimen
sine
lege
praevia
.
Criminal
behaviour
can
only
be
deterred
if
citizens
are
aware
of
the
criminalising
law
prior
to
commission
of
the
censured
conduct
.
Since
retroactive
punishment
can
not
hinder
an
action
or
omission
which
has
already
occurred
,
it
reflects
arbitrary
State
intrusion
in
citizens
’
liberties
and
freedoms[26
]
.
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