If a human crew member requests any volume/weight/length of substance that is in any reasonable measure explosive/flammable/reactive under the standard range of pressure, reflectivity, and temperature found of Alliance ships you are to determine exactly what they intend to do with it before providing it. The human must provide exact details of their intentions for every measurement or it will not be provided to them.
Addendum 1: "I have a really cool idea." is not sufficient explanation.
Addendum 2: The presence of moderately hazardous vermin is never sufficient explanation and should the human in question attempt to use it as such they should be immediately reported to the commanding officer.
Alteration 1: *under conditions no less that two standard deviations away from the standard range of pressure, reflectivity, and temperature found of Alliance ships and on worlds frequented by Alliance away teams.
Alteration 2: *under conditions where a human can survive for more than five minutes with a standard survival gear set.
Addendum 145: It is to be assumed that if there is a human on your crew there will be spontaneous explosions/ignitions/reactions. All ships hosting humans, or likely to host humans, or likely to pass near ships hosting humans will take appropriate cautions. Please see- Alliance Coalition Safety and Health Regulation 1453.245 Subfile 543 Topic-Inter-species Interactions in Formal Settings