It was day like no other for Sam and Abby Hill.

They were both sworn in as Lubbock police officers by Chief Greg Stevens as part of "Officer for a Day." LPD partnered with Target on University to help Sam, 8, and Abby, 11, walk a day in an officer's uniform.

"I cried through the entire ceremony," Katrina Hill, Sam and Abby's mother, said. "It just, it brings back that day when we were told they were sick, and you just go back to that day and you know how far they've come.'

Following the ceremony, the newly sworn-in siblings, along with other LPD officers, drove to Target on University for a morning of crime fighting.

Sam and Abby ticketed a man for parking illegally in a fire lane. They also tracked a man shoplifting toys in the store.

Store director Melissa Dobies said Target staff had been planning the day for months. 

"I think it was just kind of relief that they loved it and they were so excited," Dobies said. "Because we had been prepping so hard for it. We wanted to make it so special for them, just knowing everything that they've been through."

Not only was it a dream come true for Sam and Abby, it was a day to escape from their daily health struggles.

"Sam suffers from kidney disease," Katrina said. "He has a rare kidney disease. It's called congenital nephrotic syndrome of the Finnish type ... he has undergone 60 surgeries, both kidneys removed, 15 month dialysis."

Abby also has her own medical problems, including kidney reflux and juvenile rheumatoid arthritis.

"I can't work. I have to stay home with them," Katrina said. "Sam can't attend public school."

Corporal Sam Reedy with LPD, the mastermind behind the event, said he heard about Sam and Abby from a friend, and he wanted to help.

"These two young children are so deserving," Reedy said. "Sam and Abby are amazing, and so we want to give back. We want to show them we care."

Although every other day may be a struggle, Katrina said it is sure to be a day her kids will remember, even 50 years from now.

"There's not enough, 'Thank you's,' there's not enough things that i can say, gratitude we can show them," she said. "Just this day for them is worth a lifetime of smiles and happiness."