Accused dog poisoner Kenneth Hyland is held on  five thousand dollars bail after pleading not guilty to animal maiming charges.  But he'll be in jail for some time because he was also ordered held for two previous charges.  The judge said the landscaper has a lengthy criminal record including a history of using aliases.  But the man's lawyer says there's more to the story that will come out at trial.  Hyland allegedly put anti-freeze-soaked hot dogs on the grounds of a Charlestown trade union headquarters.