Two people have been arrested in relation to an ongoing fake cash investigation in Canterbury

Police say the arrests were made after they executed search warrants at two Christchurch properties on Wednesday.

Detective Senior Sergeant, Joel Syme, says a 22-year-old woman has been charged with 20 counts of using counterfeit money, while a 29-year-old woman faces six counts.

Both have been bailed to appear in Christchurch District Court on Tuesday.

Syme says counterfeit notes have a distinctive paper feel and irregularities - and business should especially check 50 and 100 dollar notes.