Dozens of local and federal law enforcement officers conducted a surprise search of the offices of the Roman Catholic Archdiocese of Galveston-Houston on Wednesday, looking for evidence in a clergy sexual abuse case that has ensnared the local archbishop, Cardinal Daniel N. DiNardo, who also serves as president of the United States Catholic bishops' conference. The raid in Houston is the latest sign of crisis in the church, with prosecutors growing more aggressive ... and the bishops - led by Cardinal DiNardo - hamstrung by the Vatican in their efforts to carry out reforms. Attorneys general in at least a dozen states have opened inquiries, and the Justice Department has told bishops not to destroy any documents that could relate to sex abuse cases. The attorney general in Michigan executed search warrants on all seven Catholic dioceses in that state. The assistant district attorney in charge of the [Galveston-Houston] investigation said that a search of the church offices was necessary because the Archdiocese ... had turned over only a portion of the evidence. Investigators were searching ... records on the Rev. Manuel LaRosa-Lopez, who was arrested in September on four felony counts of indecency with a child. Cardinal DiNardo had assigned [Father LaRosa-Lopez] to work in a parish and appointed him as the vicar for Hispanics ... despite knowing that Father LaRosa-Lopez had been accused in 2001 of molesting a teenage girl. The priest was arrested after a second alleged victim - a man - came forward.