The husband and wife who live there say they heard a noise.
"They heard a noise which they thought was possibly a raccoon," Kim Kobel, Boulder Police Public Information Officer, said. "They realized it was not a raccoon. It was actually somebody coming into the bedroom."
According to the homeowners, they shouted for the alleged intruder to leave. When the intruder would not leave, the husband shot the woman intruder in the hip, before calling 911.
The woman was taken to a hospital with non-life-threatening injuries. The hospital says she is in stable condition.
Police have not released the names of the parties involved. The case is under investigation.
Kobel says this case may fall under the Make My Day law.
"As a defense for shooting an intruder: There has to be unlawful entry. Unlawful entry means if someone comes into your house uninvited whether or not your door is locked or unlocked. That could be considered unlawful entry," Kobel said.
Boulder Police say they often deal with complaints of break-ins or thefts because people leave their doors open or unlocked. Police say this intruder case is a great reminder to residents to always lock your doors.
(KUSA-TV © 2012 Multimedia Holdings Corporation)