TUCSON - Tucson Police have started using a new tech tool to help them locate six-year-old Isabel Celis.

TipSoft is a program that allows anyone to send anonymous tips to police through Android or Iphone apps. People can also send a text to "CRIMES" (274637). The text should begin with the keyword "TucsonPD."

The specific keyword "TucsonPD 5625" is being used for the Celis investigation.

The service, which is an element of Crime Stoppers, allows anonymous communication by sending text messages through a secure server with a unique identification. This shields the identity of the sender.

TipSoft was originally planned to be used for less pressing crime reports, such as vandalism, theft, cold cases or drug related incidents. However, anyone with information related to the disappearance of the little girl is urged to use the "text-a-tip" technology.

Further information and instructions on TipSoft can be found on the home page of the Tucson Police Department Website (cms3.tucsonaz.gov/police), under the "submit a tip" option.