PORTLAND — A 52-year-old Maine man is appealing his conviction on an attempted murder charge for trying to kill a police officer by ramming his cruiser with a dump truck during a high-speed chase.

The Maine Supreme Judicial Court on Tuesday will hear arguments from an attorney for Bartolo Ford, who contends the trial judge should have instructed the jury on self-defense and intoxication.

Ford, of Lisbon, was convicted in 2010 and ordered to serve nine years in prison.

During trial, police testified they confronted Ford after he stole concrete cylinders from a business in Auburn. Ford then fled in the dump truck and rammed two police cruisers during the chase, one of them head-on. Ford was shot in the leg and found hours later walking alongside a road.

Ford, an Iraq war veteran, said he suffered from post-traumatic stress disorder and was having a flashback at the time of the chase.

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