An Omaha apartment owner is making sure pet owners clean up after their animals. She has taken tissue samples to create a DNA database of the residents' dogs so droppings that aren't picked up can be identified. Residents of the Southwest Gables complex had to submit their pets for cheek swabs that are being sent to PooPrints. Apartment manager Kim McIntosh says all the dog owners complied as part of their obligations under a pet agreement they signed when they moved in. Now, if a resident fails to clean up a mess on the grounds, some evidence can be sent to PooPrints for identification of the dog and its owner could be fined for failing to meet his or her cleanup obligations.