Mae Heddlu Manceinion Fwyaf yn arwain ymchwiliad troseddol i arferion yn Trimega Laboratories Limited (Trimega) yn ardal Manceinion rhwng 2010 a 2014. Cafodd cwmni Trimega ei ddiddymu ym mis Ebrill 2014. Mae canlyniadau’r holl brofion a gynhaliwyd gan Trimega rhwng y dyddiadau hyn yn cael eu trin fel canlyniadau sydd o bosibl yn annibynadwy.
Greater Manchester Police (GMP) is leading a criminal investigation into the practices  at  Trimega Laboratories Limited (Trimega),  which was based in the Manchester area, between 2010 and 2014. Trimega went into liquidation in April 2014.  Results from all tests carried out by Trimega between these dates are currently being treated as potentially unreliable.