Переведите, пожалуйста, три предложения.

1. Audio, video, or a combination may be used but, because of the absence of case law to serve as a legal guide, local requirements should be checked.
2. The determination should include whether it is necessary to inform the suspect that the interrogation is going to be recorded.
3. A sound videotape that can be shown on a television set or a sound motion picture that can be introduced into court is best. It can be used to overcome charges of coercion.