Three men arrested on suspicion of desecrating the grave of an 82-year-old woman and stealing her body have been released on bail.
Gladys Hammond's body was dug up in October
The trio, in their 30s and from Birmingham and Wolverhampton, were being questioned in Staffordshire.
The remains of Gladys Hammond, 82, were taken from St Peter's churchyard in Yoxall, Staffordshire, in October 2004.
The men have been freed pending further inquiries and have been ordered to return to a police station on 12 May.
The men, one of whom was arrested last year in connection with the offence, were originally detained on Wednesday morning for questioning about alleged criminal damage.
A force spokesman said: "Three men who were being held at Burton police station in connection with the Yoxall grave desecration have tonight (Thursday) been released on police bail for two months while we carry out more enquiries.
Gladys Hammond's body has been missing for nearly six months
Mrs Hammond was buried in the churchyard seven years ago. Following the removal, her remains have not been found
She was the mother-in-law of Christopher Hall, who part-owns Darley Oaks Farm in Newchurch, Staffordshire, where guinea pigs are bred for medical research.
The Hall family has been subjected to a long-running campaign of intimidation including hate mail, malicious phone calls, hoax bombs and arson attacks.
Seven people have now been arrested and bailed in connection with the inquiry.
A 32-year-old man and a woman, aged 30, were released on Wednesday after being detained at a house in Lysons Avenue, Gloucester.
A man and woman arrested in connection with the desecration last year remain on police bail.