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Table 2 Changes in technical and conceptual legal knowledge about most commonly misused drugs. This includes matched McNemarā€™s Ļ‡ 2 tests between pre- and post-ESCUDO training (nĀ =Ā 1750)

From: Measuring improvement in knowledge of drug policy reforms following a police education program in Tijuana, Mexico

Variable

Before training

After training

p value

No.

%

No.

%

McNemarā€™s Ļ‡ 2

Exact knowledge of the lawā€”what a suspect can currently possess under the law of Baja California

ā€ƒSyringes (as many as they want)

908

55.91

1470

90.52

<ā€‰0.001

ā€ƒHeroin (50Ā mg)

142

8.42

1194

70.82

<ā€‰0.001

ā€ƒMethamphetamine (40Ā mg)

125

7.46

1144

68.26

<ā€‰0.001

ā€ƒMarijuana (5Ā g)

155

9.18

889

52.67

<ā€‰0.001

Decriminalization conceptā€”what a suspect can currently possess (any quantity)

ā€ƒSyringes

1085

66.81

1556

95.81

<ā€‰0.001

ā€ƒHeroin

196

11.63

1541

91.4

<ā€‰0.001

ā€ƒMethamphetamine

201

11.99

1495

89.20

<ā€‰0.001

ā€ƒMarijuana

282

16.71

1545

91.53

<ā€‰0.001