INTERNATIONAL
LAW
century,
Hugo
Grotius,
a
Dutchman,
had
been
alarmed
by the
destructiveness
of the
Thirty
Years
War.
He
wished
to
reduce
both
the
causes
and
the
destructiveness
of
war,
and to do so he
wrote
a
book called
De
Jure
Belli
ac
Pads
(The
Law
of
War
and
Peace).
He
relied upon Natural
Law as a
philosophical basis
for his
work.
The
principles
of
Natural
Law and of
Roman
law
were similar,
and so
many
of his
ideas were
fairly
readily
understood
by
Europeans.
These
same
principles were
the
basis
for the
laws
of the
North
and
South American legal systems.
Grotius
was
the first to
discover
that
all
Natural
Law
falls
into
one of two
categories: either
it is
public
law
(the
law
dealing with matters
of
government)
or
it is
private
law
(law dealing
with
the
private
af-
fairs
of
individuals).
A
later
major
voice
in the
movement towards
international
law was Sir
Henry Maine,
who in
his
book
International
Law
also sought
a way to
make
war
less destructive.
These
movements
later bore
fruit
in the
various Conventions
of
Geneva
and
Lausanne
and
many others,
the
Treaties
of
Westphalia
and
many other
interna-
tional treaties,
the
Permanent Court
of
Inter-
national Justice (later reconstituted
as the
International
Court
of
Justice under
the
control
of
the
United Nations),
the
League
of
Nations,
and
the
United Nations.
The
actual basis
for
nearly
all
international
law in the
modern world
of
nation-states
are the
agreements
that
nations
make
with
each other.
The
sovereign powers
of
the
nations have acknowledged
that
they will
be
bound
by
these agreements and,
in
effect,
have
had to
relinquish some
of
their power
as
sover-
eign states
to
comply
with
these agreements.
A
critical portion
of
international
law
con-
cerns
jurisdiction. International courts
are
some-
times asked
to
decide
which
nation
has
jurisdiction over
a
specific
territory.
These
kinds
of
questions
are
usually answered
on the
basis
of
which nation
has
sovereignty,
and
laws have been
established
to
answer such questions.
The in-
terests
of
nation-states always take precedence
over
the
interests
of
indigenous tribal
or
band
societies
in
determining jurisdiction.
A
second question
of
jurisdiction
has to do
with
cases
in
which
the
territorial principle
of
jurisdiction
is
unclear
or
conflicting,
and
this
usually
happens
in
cases
that involve travel
on
ships. Take,
for
example,
the
case
of
Regina
v.
Anderson
(Great Britain, Court
of
Criminal
Appeal,
1868).
In
this
case,
an
American
man
stood accused
of
murdering another
man
while
on
a
British ship, which
was at the
time
in
French
waters. Arguments could
be
made
on
behalf
of
jurisdiction
in
American courts (because
the ac-
cused
was
American),
on the
basis
of the na-
tionality principle
of
law,
in
which
the
state
wishes
to
have jurisdiction over
its own
citizens
and
any
other people
who
have special ties
to
the
state.
An
argument could also
be
made
for
British jurisdiction, since
the
offense
occurred
on
a
British ship,
by the
territorial principle
of
law.
However,
the
territorial principle could also
be
invoked
by the
French, since
the
offense
oc-
curred
in
French waters.
The
British Court
of
Criminal Appeal noted
that
the
French courts
certainly could have tried
the
case,
but by the
provisions
of the
treaties
of
Ortolan,
the
French
do not
claim jurisdiction over foreign vessels
in
French waters unless requested
to do so by the
master
of the
ship
or if the
case involves
a
dis-
turbance
of the
peace
at a
port.
It is
generally
regarded
in
cases
of
this type
that
a
ship
is a
"floating
island"
and is
part
of the
nation
in
which
the
ship
is
registered. Further,
one of the
chief principles bearing
on the
selection
of ju-
risdiction
in
legal cases
of
international involve-
ment
is
comity.
The
term
comity
refers
not to a
legal principle
but
rather
to a
principle
of
cour-
teous
behavior,
in
which
one
court that could
claim jurisdiction allows another court, which
could also claim jurisdiction,
to try the
case
if it
has
claimed jurisdiction
first. In the
case above,
the
British claimed jurisdiction
first, and the
French courts
did not try to
take jurisdiction
by
virtue
of
comity.
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