RedactedNarrative: Marine Patrol Officer received a call for an unconscious 8 month old infant, CPR was being administered. The vessel met emergency vehicles at the town docks nearby. Both children were transported to the local hospital where it was determined they were poisoned by carbon monoxide. The fire department conducted a test for CO2 levels, the reading was 900 parts per million, this level is extremely high. A few weeks after the incident the owner call to say there were no mechanical issues were found. He did explain he was driving the vessel slower than usual and believes the exhaust from the engines rolled up and over the sides and into the cabin area.