(a) When Taken. If it appears that a prospective witness may be unable to attend or prevented from attending a trial or hearing, that the witness' testimony is material and that it is necessary to take the witness' deposition in order to prevent a failure of justice, the court at any time after the filing of a complaint may upon motion of a defendant or the State and notice to the parties order that the witness' testimony be taken by deposition and that any designated books, papers, documents, or tangible objects, not privileged, be produced at the same time and place. If a witness is committed for failure to give bail to appear to testify at a trial or hearing, the court on written motion of the witness and upon notice to the parties may direct that the witness' deposition be taken. After the deposition has been subscribed the court may discharge the witness. (b) Notice of Taking. The party at whose instance a deposition is to be taken shall give to every other party reasonable written notice of the time and place for taking the deposition. The notice shall state the name and address of each person to be examined. On motion of a party upon whom the notice is served, the court for cause shown may extend or shorten the time. (c) Defendant's Counsel and Payment of Expenses. If a defendant who is charged with an offense which is punishable by imprisonment for a term of more than six (6) months is without counsel, the court shall advise the defendant of his or her right and assign counsel to represent the defendant unless the defendant elects to proceed without counsel or is able to obtain counsel. If it appears that a defendant at whose instance a deposition is to be taken cannot bear the expense thereof, the court may direct that the expense of travel and subsistence of the defendant's attorney for attendance at the examination shall be paid by the State. If a deposition is taken at the instance of the prosecution or of a witness who has been committed for failure to give bail, the defendant's attorney and a defendant not in custody shall be paid by the State their expenses for travel and subsistence for attendance at the examination. If a deposition is to be taken at the instance of any party or of a witness committed for failure to give bail, a defendant who is in custody shall be permitted to attend the taking of the deposition at the expense of the State. (d) How Taken. A deposition shall be taken in the manner provided in civil actions. The court at the request of a defendant may direct that a deposition be taken on written interrogatories in the manner provided in civil actions. (e) Use. At the trial or upon any hearing, a part or all of a deposition, so far as otherwise admissible under the rules of evidence, may be used if it appears: That the witness is dead; or that the witness is out of the State, unless it appears that the absence of the witness was procured by the party offering the deposition; or that the witness is unable to attend or testify because of sickness or infirmity; or that the party offering the deposition has been unable to procure the attendance of the witness by subpoena. Any deposition may also be used by any party for the purpose of contradicting or impeaching the testimony of the deponent as a witness. If only a part of a deposition is offered in evidence by a party, an adverse party may require him or her to offer all of it which is relevant to the part offered and any party may offer other parts. (f) Objections to Admissibility. Objections to receiving in evidence a deposition or part thereof may be made as provided in civil actions. R.I. Dist. R. Crim. P. 15