As WBKO reported earlier in the week, the passenger bus involved in the I-65 crash last Monday morning that left two dead and 64 injured was filled past its capacity.
The bus was designed to carry 55 passengers, but when the crash occurred there were 66 people on board, including the two co-drivers.
Kentucky State Police Sergeant John Clark says this overseating may have caused more injuries.
"When you have an extra eleven people thrown in the mix of all these 55 seats of course they're not going to have the same level of protection than they would have if they were in an individual seat by themselves", says Sergeant Clark.
Clark also said the tour bus had improper registration. Sergeant Clark told WBKO the tags found on the bus actually belonged to a different bus and expired this year.
He added that the registration tags that were supposed to be on the bus expired in 2005.
The 1995 model bus, made by MCI Motor Coach Corporation was carrying family members home to Alabama from a family reunion in Niagara Falls.
Most were from rural Forkland, Alabama, about 100 miles southwest of Birmingham.