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  2. Traffic break - Wikipedia

    en.wikipedia.org/wiki/Traffic_break

    A traffic break is any separation in the flow of traffic —naturally occurring or otherwise—along a road or highway. In heavily congested traffic, natural breaks occur rarely, thus the term traffic break most commonly refers to the manual separation of traffic, normally conducted by highway patrol officers. [1]

  3. Reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Reinforced_concrete

    For example, MRI machines have huge magnets, and accordingly require non-magnetic buildings. Again, toll booths that read radio tags need reinforced concrete that is transparent to radio waves . Also, where the design life of the concrete structure is more important than its initial costs, non-steel reinforcing often has its advantages where ...

  4. Parallel construction - Wikipedia

    en.wikipedia.org/wiki/Parallel_construction

    One DEA official had told Reuters: "Parallel construction is a law enforcement technique we use every day. It's decades old, a bedrock concept." An example from one official about how parallel construction tips work is being told by Special Operations Division that: "Be at a certain truck stop at a certain time and look for a certain vehicle."

  5. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    Ten-code. Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code.[1]

  6. Vagueness doctrine - Wikipedia

    en.wikipedia.org/wiki/Vagueness_doctrine

    In American constitutional law, a statute is void for vagueness and unenforceable if it is too vague for the average citizen to understand. This is because constitutionally permissible activity may not be chilled because of a statute's vagueness (either because the statute is a penal statute with criminal or quasi-criminal civil penalties, or because the interest invaded by the vague law is ...

  7. Covert operation - Wikipedia

    en.wikipedia.org/wiki/Covert_operation

    Joh defined the term authorized criminality to describe this phenomenon, which she restricts primarily to undercover law enforcement officers, excluding confidential informants. [16] These criminal activities are primarily used to "provide opportunities for the suspect to engage in the target crime" and to maintain or bolster their cover identity.

  8. Police code - Wikipedia

    en.wikipedia.org/wiki/Police_code

    Police code. A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes, or ...

  9. List of Jim Crow law examples by state - Wikipedia

    en.wikipedia.org/wiki/List_of_Jim_Crow_law...

    Penalty: If companies fail to enforce the law required to pay a forfeit of $100, half to be paid to the person suing, the other half to be paid to the state's school fund. 1882: Railroads [Statute] 1881: law amended to state that railroads required to supply first-class passenger cars to all persons paying first-class rates. Penalty: $300 fine ...