United States Secret Service men spent 13 months investigating and getting evidence.

Police confirm they are investigating new scientific evidence in the case.

November 8, 2007: Police confirm that they are investigating new forensic evidence in the case.

We're using those resources to investigate and gather evidence.

"Students must be challenged to investigate the best arguments and evidence on both sides of the question," he says.

It has also had great success in investigating gamma-ray bursters and evidence for black holes.

Legwork usually involves interviewing witnesses, investigating evidence and following leads.

He sought simply to investigate and record evidence of the moving rock phenomenon, not to hypothesize or create an extensive scientific report.

The group now has more than 800 field investigators as well as teams to investigate possible evidence of any extraterrestrial craft.

"Baseball does not need union agreement to investigate specific evidence of illegal drug use," the report said.