HeistHavenLib

New items:

• Substances
• Evidence
• Cop uniform and baton

Abilities and functions:

• Frisking functionality for players with substances
• Portal blocks to separate cops from criminals
• Substance prices
• Evidence prices
• Dealer multipliers
• Substance multipliers
• Prevent cop baton and uniform from being dropped

Commands:

• Sell substances
• Set individual substance prices
• Set evidence price
• List the dealers, multipliers, and their location
• Go on duty as a cop and go off duty
• List currently online cops 

Most of these things won't work on their own and require the Heist Haven modpack!