One of the most wanted kidnappers in Delta State has a doctorate degree (Ph.D) in Mechanical Engineering, the state commissioner of police, Mr Ikechukwu Aduba, has said.Speaking in an interview with the Nigerian Tribune in Asaba, Aduba said the man (name witheld) hails from Kokori area in Ethiope Local Government Area of the state, adding that the criminal had become a problem, as he masterminded most of the abduction cases in the state.The commissioner disclosed that over 300 kidnappers and robbers had either been arrested or killed in the state since March.According to him, some of the suspected kidnappers were acquitted because victims refused to testify in court.Aduba said controversies over occupier of traditional stools in some communities in the area also affected the fight against crimes in the state, adding that “the police need information and we expect the traditional rulers to cooperate with us.”He added that about six policemen had been dismissed over various offences.