Mexico has very strict laws pertaining to both illegal and legal immigrants. They alleged they had evidence of other illegal activities. The crimes are driving under the influence of alcohol, illegal and legal drugs. They are concerned about the perceived lack of sufficient enforcement against illegal activities. The majority of illegal immigrants come from Mexico. Investigations and arrests followed relating to charges of illegal tax evasion. More than half of illegal immigrants originate from Mexico. Landlords guilty of illegal enclosures were increasingly prosecuted. They are immoral, inhuman and illegal. It is implied that she gained some of her information in unethical or illegal ways. O'Donnell favors increasing penalties for employers who hire illegal immigrants. He helps clear a double homicide case involving the trafficking of illegal prescription painkilling pharmaceuticals. Bhutto ordered a crackdown on and deportation of illegal Bangladeshi immigrants. Let's stop the business of illegal immigration. Police accused the organizers of illegal conspiracy.