Drug Compound   Weekday Sample   Weekend Sample    
  Collection Presence Response Collection Presence Response
Amphetamine 1st - NA 1st - NA
  2nd + 816 2nd - NA
Methamphetamine 1st - NA 1st + 4770
  2nd - NA 2nd + 4720
MDMA 1st + 370 1st - NA
  2nd + 673 2nd - NA
Heroin 1st + 1380 1st - NA
  2nd - NA 2nd - NA
Cocaine 1st - NA 1st + 331000
  2nd + 187000 2nd + 411000
Benzoylecognine 1st + 389000 1st + 834000
  2nd + 421000 2nd + 1000000
Flurazepam 1st - NA 1st - NA
  2nd - NA 2nd - NA
Alprazolam 1st + 2550 1st - NA
  2nd + 2650 2nd + 7900
Lorezepam 1st + 44800 1st + 44600
  2nd + 30500 2nd + 30800
Diazepam 1st - NA 1st - NA
  2nd - NA 2nd - NA
THC-COOH 1st + 2630 1st + 1910
  2nd + 17400 2nd + 14000
THC-OH d3 1st + 16300 1st + 32900
  2nd + 35500 2nd + 64500
Table 4: Compounds detected in the samples by LC-MS, Note: ’+“=Present; ’-“=Absent, Weekday sample 1st=Tuesday, 2nd=Thursday , Weekend samples are all Staken on Saturday.