Glass Fracture Analysis

Glass Fracture Analysis

Helping recreate crime scenes

Multiple Choice

What type of fracture was the red arrow pointing at?

• concentric

• radial

Multiple Choice

What type of fracture was the blue and red arrow on the previous slide?

• Blue was radial and red was concentric.

• Red was radial and blue was concentric.

• Both were radial.

• Both were concentric.

Multiple Choice

Which bullet hole came first?

• A

• B

• It can not be determined from the picture.

Multiple Choice

Notice the Wallner lines in the fractured glass. Did the force that broke the glass come from above or below the glass?

• above

• below

Multiple Choice

Notice the Wallner lines in the fractured glass. Did the force that broke the glass come from the top or the bottom of the glass?

• Top

• Bottom

Multiple Choice

Did the bullet that made the hole come from the front or the back of glass. (Assume the side closes to the camera/us is the front.)

• front

• back

Multiple Choice

The picture of the bullet hole is from the outside an apartment window. Did the bullet come from the outside or inside the apartment?

• Inside

• Outside

• It cannot be determined from the picture.