<s>
Sensorvault	B-Application
is	O
an	O
internal	O
Google	B-Application
database	O
that	O
contains	O
records	O
of	O
users	O
 '	O
historical	O
geo-location	O
data	O
.	O
</s>
<s>
It	O
has	O
been	O
used	O
by	O
law	O
enforcement	O
to	O
obtain	O
a	O
geo-fence	B-Application
warrant	I-Application
and	O
to	O
search	O
for	O
all	O
devices	O
within	O
the	O
vicinity	O
of	O
a	O
crime	O
,	O
(	O
within	O
a	O
geo-fenced	O
area	O
)	O
and	O
after	O
looking	O
at	O
those	O
devices	O
 '	O
movements	O
and	O
narrowing	O
those	O
devices	O
down	O
to	O
potential	O
suspects	O
or	O
witnesses	O
,	O
then	O
asking	O
Google	B-Application
for	O
the	O
information	O
about	O
the	O
owners	O
of	O
those	O
devices	O
.	O
</s>
