The following signs listed below are indicators that a person might be driving while intoxicated. This list is based upon research conducted by the National Highway Traffic and Safety Administration:

• Turning with wide radius straddling center of lane marker
• "Appearing to be drunk"
  • Eye fixation
  • Tightly gripping the steering wheel
  • Slouching in the seat
  • Gesturing erratically or obscenely
  • Face close to the windshield
  • Drinking in the car
  • Driver's head protruding from the car
• Almost striking object or vehicle
• Weaving
• Driving on other than designated roadway
• Swerving
• Speed slower than 10 M.P.H. below limit
• Stopping in lane for no apparent reason
• Following too closely
• Drifting
• Tires on center or lane marker
• Braking erratically
• Driving into opposing or crossing traffic
• Slow response to traffic signals
• Signaling inconsistent with driving actions
• Stopping inappropriately (other than in traffic lane)
• Turning abruptly or illegally
• Accelerating or decelerating rapidly
• Headlights off at night

Although the police believe speeding is a factor, speeding is not a recognized sign of intoxication. The faster you drive, the quicker your reactions must be. In my opinion, if you are speeding and driving normally, it is an indicator of sobriety (i.e. having the normal use of physical and mental faculties).