Never do this.
Here a child
is
sitting
in
a seat that has a
lap-shoulder belt, but the shoulder
part
is
behind the child. If the child wears the belt in
this
way,
in
a crash the child might slide under
the belt. The belt’s force would then be applied
right on the child’s abdomen. That could cause
serious or fatal injuries.
The lap portion of the belt should be worn
low and snug
on the hips, just touching the child’s thighs. This
applies belt force
to the child’s pelvic bones in a crash.
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