Life
  Definition of Life
  Fossils
  Martian Meteorite

Data Analysis
  Thin Section Analysis
  Isotope Analysis
  Gas Chromatograph Mass Spectrometer
  Infrared Spectroscopy
  Alpha-Proton X-Ray Spectrometer
  Detection of Carbon Complexes
  Labeled Release
  Gas Exchange
  Pyrolytic Release
  Stimulus Response Experiments

 These tests are made to detect large amounts of these complexes. In the case that any of these come out with positive data, they are a pretty reliable source of evidence. These tests may be used after some signs from earlier tests have indicated these things might be found in significant quantities. 

Positive: Proteins, carbohydrates, lipids, or nucleic acids found. Life indicated. 

Negative: None of the above detected.

False-positive: Contamination may occur. Apparent proteins might be produced by inorganic processes.