How to pronounce “swab”(noun) in English

The transcripts of phone calls Hans made to his mother, and pleading voice mails left for Nina, the photographs of Nina and the children,and her blood sprayed across the beam. Swabs, DNA lab results, recordings, videos, maps charting Hans' routes through the East Bay as he tried to evadethe police. Receipts for a water pump, for books about murder, testimony from social workers, doctors, financial records, everything that went into the story Paul Hora wrote for the jury having