s fired. If an automatic weapon was
.d, or a repeating rifle, this information
| aid in locating the expended shells
ich may be lying on the ground at the
x from which the weapon was fired. A
tem used quite frequently in this work,
‘o take a string, pass it through the hole,
d range it with the approximate position
the victim’s wound, or the embedded
llet if the shot missed its mark. The
ing is then extended in the direction from
ich the shot must have been fired. The
gle of the string will often determine the
act spot at which the shot was fired. How-
sr if this cannot be determined, two
ings are then stretched parallel to the
st one, and a few feet on either side. The
“a encompassed by the two outer strings
then carefully combed for the expended
rtridge cases, which so often form the
st vital piece of evidence in a shooting
Se.

As a shot passes through a pane of glass,
ere is a tendency to “punch” out a section
glass its own size, but the pressure being
erted in all directions equally, the result
that the pane will “flake” on the side
mote from the point of entry, and there
Il be a clear indication of direction. Sim-
rly an angle shot will leave an oval area
the point of exit.

Some time ago there were a number of
efts at a summer resort in which windows
summer cottages were broken, the sash
ised, thus affording easy entry for the
usebreaker. There had been a series of
ese housebreakings, and the investigating
ficers were of the opinion that they were
ing perpetrated by a member of the little
mmunity. Another similar housebreaking
cured and the investigating officers care-
lly examined the broken window. While
e pieces of glass were found inside the
use, which would normally indicate that
e window had been broken from the out-
Je, they found by careful examination of
e fragments, that the glass had actually
en smashed by a blow from inside the
suse. Further investigation was made,
hen the householder admitted that he had
en responsible for all the thefts, and that
_ divert attention from himself, he had
aged a “housebreaking” in his own cot-
ge. Apparently he had carefully opened
e window which swung inwards, and
ruck it a blow which caused the glass to
Il inside the house. However he had not
ckoned with the evidence which the glass
self would give.

Tt has been noted that glass breaks in
dial and concentric fractures. In small
indows the concentric fractures may be
tally absent. However the radial fractures
irnish sufficient information. If the reader
ill examine a piece of broken glass, he will
ote that the edge bears a peculiar design,
scallop” effect. The size and frequency of
e “scallops” vary with the quality, thick-
ess, and possibly with the age of the glass,
ut all glass appears to have this point in
mmon. The “scallops” are something like
n “L”, one leg paralleling one surface of
1e glass, then curving, and the other leg

OURTEENTH EDITION

ending at right angles to the other surface
of the glass.

These “scallops” tell quite a story. Re-
calling that the glass starts to break at the
side remote from that on which the force
was originally applied, it will be noted that
the vertical part of the scallop will always
appear on the side remote from the source
of the force. The parallel leg of the “scal-
lop” will always indicate the side from
which the force was applied. But this is not
all, the direction in which the “leg” is bent
will also indicate the point at which the
force was applied. The illustrations will
no doubt clarify this description, but the
best way in which the reader can familiarize
himself with this phenomenon is to break
a piece of glass and examine the edges. To
test himself, it is suggested that a red and
blue grease pencil be used, one side of the
glass scribbled in red and the other scribbled
in blue.

In determining how a piece of glass was
broken from a window, it is necessary to
ascertain which side of the glass faced out,
and which side faced inwards. This is
usually easy, as the outside will often have
particles of dust, leaf mold, insects and so
on, while the inside may have a smoke film
or grease depending upon the tidiness of
the housekeeper.

It will be noted from the above that much
information can be secured from a few

“pieces of glass. While this is only an out-

line, it must be appreciated that space will
not permit of greater detail.

OWNER: “The least you could have done
was to have kept up with the other jockeys.”

Jockey: “What! Me leave the horse be-
hind?”

OBLIQUE SHOT

RADIALS TOO SHORT.

LINES of FORCE

NELSON BROS. FISHERIES
LIMITED
325 Howe St. Vancouver, B. C.

Quality Packers and Producers
CANNED SALMON
CANNED PILCHARD
CANNED HERRING

FISH MEAL FISH OILS
SALT SALMON

Brands:
Portage Universal King Edward
Paramount Rampart Swan

“We Treat Your Clothes White”

ee a :
PEERLESS LAUNDRY
DRY CLEANERS LTD.

BAyview 0841
Third at Pine

VANCOUVER, B.C.

Telephone MArine 6629 Res., BAyview 8501

B. C. WHARF AND MACHINERY
COMPANY LIMITED

New and Used Machinery
Sand and Gravel
We Specialize in Heavy Anchors and Chains

1901 Georgia St. West Vancouver, B. C.

—_———————______—_—_—_———__

WIRE NET GLASS.

SAFETY GLASS

SEQUENCE BY RADIAL INTERSECTION.

Page Forty-three