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.
Wherever the child sits, 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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