Those swabbed included Father Nugent, the priest at St Patrick's Church in Anderston, Glasgow, where Angelika was staying and where her body was found.

Police forensic scientist Carol Weston also said prints matching Tobin's DNA were recovered from insulating tape that had been used to gag Angelika, 23.

A man called Matthew Spark-Egan was also swabbed. The jury have already heard that a tramp known as Sparky was believed to be sleeping rough at St Patrick's.

The others swabbed were a man named as David Atkinson and Dennis and Catherine Curran, who ran the charity Loaves and Fishes which regularly met at St Patrick's and provided food and clothes to the homeless.

The expert had previously said that the chances of a fingerprint found on the tape used to gag Angelika not being Tobin's were one in a billion.

But Donald Findlay QC, defending, pointed out that Mrs Weston had not taken a swab from the tape background, in the area of the ridges allegedly left by Tobin's finger. The scientist admitted that had been a mistake.

Tobin, 60, who worked as a handyman at St Patrick's, denies raping and murdering Angelika in the church last September. He claims she agreed to have sex with him. The trial continues today.

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