An investigation by the Douglas County sheriff's Crimes Against Children unit involving Denver Nuggets reserve center Chris "Birdman" Andersen could take weeks. Sheriff's spokesman Ron Hanavan on Friday declined to release details about what items were seized at Andersen's Larkspur, Colo., home a day before as part of the investigation. Authorities say Andersen has been under investigation since February following a tip from an unidentified California law enforcement agency. Items generally collected during such investigations include computers, hard drives and thumb drives. They're sent to the multi-agency Rocky Mountain Regional Computer Forensics Laboratory in suburban Denver. The lab has a backlog of computers awaiting analysis by investigators who retrieve information, find out where additional information may be stored on other servers, as well as determine who used the computer.