A portable, disposable explosive detection utility device comprising: - 7 sealed reagent tubes each comprising a reagent for detecting an explosive; - a pin for opening said sealed reagent tubes; - multiple test beds for detection of explosives; and - a colour chart to identify the explosives, wherein said reagents are selected from the group: a. Reagent 1 comprising 4 - 6ml of Tetra butyl ammonium hydroxide, 25 - 35ml of dimethyl sulphoxide, 6 - 10ml methanol, 0.1 - 0.22g N-(1-naphthyl) ethylenediamine dihydrochloride and 2.5 - 3.2g sulphanilamide in 5 - 10% aqueous phosphoric acid, b. Reagent 2 comprising 1- 2.5g sulfanilic acid with 50 - 70ml glacial acetic acid and 0.1 - 0.35g N-(1-naphthyl) ethylenediamine dihydrochloride and 0.5 - 2.5g zinc dust, c. Reagent 3 comprising 4 - 6g sulfanilic acid, 9 - 15ml DMSO, 10 - 25ml methanol, 50 - 70ml distilled water and 2.3 - 4.7g aniline sulphate, d. Reagent 4 comprising tetra butyl ammonium hydroxide approximately 4 - 7ml, with 25 - 50ml of dimethyl sulphoxide and 6 - 15ml methanol and 0.1 - 0.35g N-(1-naphthyl) ethylenediamine dihydrochloride, e. Reagent 5 comprising 1 - 3.5g sulfanilic acid with 50 - 70ml glacial acetic acid and 1 - 3.5g N-(1-naphthyl) ethylenediamine dihydrochloride and 0.5-1.5g zinc dust, f. Reagent 6 comprising 2.5 - 5.5g potassium hydroxide, 5 - 20ml distilled water and 45 - 75ml DMSO, and g. Reagent 7 comprising 3 - 4.5g sulfanilic acid with 50 - 70ml glacial acetic acid and 0.3 - 4.2g N-(1-naphthyl) ethylenediamine dihydrochloride and 0.5 - 1.5g zinc dust; wherein the explosives are selected from nitramine /nitramine based plastic explosive, nitrates, chlorates, trinitrotoluene, tetryl, triaminotrinitrobenzene (TATB), pentaerythritol tetranitrate (PETN) and combinations thereof. - 7 sealed reagent tubes each comprising a reagent for detecting an explosive; - a pin for opening said sealed reagent tubes; - multiple test beds for detection of explosives; and - a colour chart to identify the explosives, a. Reagent 1 comprising 4 - 6ml of Tetra butyl ammonium hydroxide, 25 - 35ml of dimethyl sulphoxide, 6 - 10ml methanol, 0.1 - 0.22g N-(1-naphthyl) ethylenediamine dihydrochloride and 2.5 - 3.2g sulphanilamide in 5 - 10% aqueous phosphoric acid, b. Reagent 2 comprising 1- 2.5g sulfanilic acid with 50 - 70ml glacial acetic acid and 0.1 - 0.35g N-(1-naphthyl) ethylenediamine dihydrochloride and 0.5 - 2.5g zinc dust, c. Reagent 3 comprising 4 - 6g sulfanilic acid, 9 - 15ml DMSO, 10 - 25ml methanol, 50 - 70ml distilled water and 2.3 - 4.7g aniline sulphate, d. Reagent 4 comprising tetra butyl ammonium hydroxide approximately 4 - 7ml, with 25 - 50ml of dimethyl sulphoxide and 6 - 15ml methanol and 0.1 - 0.35g N-(1-naphthyl) ethylenediamine dihydrochloride, e. Reagent 5 comprising 1 - 3.5g sulfanilic acid with 50 - 70ml glacial acetic acid and 1 - 3.5g N-(1-naphthyl) ethylenediamine dihydrochloride and 0.5-1.5g zinc dust, f. Reagent 6 comprising 2.5 - 5.5g potassium hydroxide, 5 - 20ml distilled water and 45 - 75ml DMSO, and g. Reagent 7 comprising 3 - 4.5g sulfanilic acid with 50 - 70ml glacial acetic acid and 0.3 - 4.2g N-(1-naphthyl) ethylenediamine dihydrochloride and 0.5 - 1.5g zinc dust;